Home / 18,403.77-25,397.55-10,446.51

Finding the Fourth Proportional to 18,403.77, 25,397.55 and 10,446.51

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Solution

The fourth proportional to 18,403.77, 25,397.55 and 10,446.51 is: 14,416.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,403.77 : 25,397.55 = 10,446.51 : x
  2. Step 2: Convert to fraction form
    18,403.77/25,397.55 = 10,446.51/x
  3. Step 3: Cross multiply
    18,403.77x = 25,397.55 × 10,446.51
  4. Step 4: Simplify right side
    18,403.77x = 265,315,760.05
  5. Step 5: Solve for x
    x = 265,315,760.05/18,403.77
  6. Step 6: Final answer
    x = 14,416.38

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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.