Home / 18,397.79-25,392.45-10,440.75

Finding the Fourth Proportional to 18,397.79, 25,392.45 and 10,440.75

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Solution

The fourth proportional to 18,397.79, 25,392.45 and 10,440.75 is: 14,410.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,397.79 : 25,392.45 = 10,440.75 : x
  2. Step 2: Convert to fraction form
    18,397.79/25,392.45 = 10,440.75/x
  3. Step 3: Cross multiply
    18,397.79x = 25,392.45 × 10,440.75
  4. Step 4: Simplify right side
    18,397.79x = 265,116,222.34
  5. Step 5: Solve for x
    x = 265,116,222.34/18,397.79
  6. Step 6: Final answer
    x = 14,410.23

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.