Home / 18,416.16-25,415.20-10,458.24

Finding the Fourth Proportional to 18,416.16, 25,415.20 and 10,458.24

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Solution

The fourth proportional to 18,416.16, 25,415.20 and 10,458.24 is: 14,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416.16 : 25,415.20 = 10,458.24 : x
  2. Step 2: Convert to fraction form
    18,416.16/25,415.20 = 10,458.24/x
  3. Step 3: Cross multiply
    18,416.16x = 25,415.20 × 10,458.24
  4. Step 4: Simplify right side
    18,416.16x = 265,798,261.25
  5. Step 5: Solve for x
    x = 265,798,261.25/18,416.16
  6. Step 6: Final answer
    x = 14,432.88

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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.