Home / 15,470.85-21,350.02-8,397.27

Finding the Fourth Proportional to 15,470.85, 21,350.02 and 8,397.27

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Solution

The fourth proportional to 15,470.85, 21,350.02 and 8,397.27 is: 11,588.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.85 : 21,350.02 = 8,397.27 : x
  2. Step 2: Convert to fraction form
    15,470.85/21,350.02 = 8,397.27/x
  3. Step 3: Cross multiply
    15,470.85x = 21,350.02 × 8,397.27
  4. Step 4: Simplify right side
    15,470.85x = 179,281,865.39
  5. Step 5: Solve for x
    x = 179,281,865.39/15,470.85
  6. Step 6: Final answer
    x = 11,588.37

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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.