Home / 18,402.72-25,395.36-10,747.31

Finding the Fourth Proportional to 18,402.72, 25,395.36 and 10,747.31

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Solution

The fourth proportional to 18,402.72, 25,395.36 and 10,747.31 is: 14,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402.72 : 25,395.36 = 10,747.31 : x
  2. Step 2: Convert to fraction form
    18,402.72/25,395.36 = 10,747.31/x
  3. Step 3: Cross multiply
    18,402.72x = 25,395.36 × 10,747.31
  4. Step 4: Simplify right side
    18,402.72x = 272,931,752.75
  5. Step 5: Solve for x
    x = 272,931,752.75/18,402.72
  6. Step 6: Final answer
    x = 14,831.06

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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.