Home / 11,151.61-15,381.16-9,470.37

Finding the Fourth Proportional to 11,151.61, 15,381.16 and 9,470.37

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Solution

The fourth proportional to 11,151.61, 15,381.16 and 9,470.37 is: 13,062.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.61 : 15,381.16 = 9,470.37 : x
  2. Step 2: Convert to fraction form
    11,151.61/15,381.16 = 9,470.37/x
  3. Step 3: Cross multiply
    11,151.61x = 15,381.16 × 9,470.37
  4. Step 4: Simplify right side
    11,151.61x = 145,665,276.23
  5. Step 5: Solve for x
    x = 145,665,276.23/11,151.61
  6. Step 6: Final answer
    x = 13,062.26

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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.