Home / 15,751.47-23,615.61-7,426.78

Finding the Fourth Proportional to 15,751.47, 23,615.61 and 7,426.78

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Solution

The fourth proportional to 15,751.47, 23,615.61 and 7,426.78 is: 11,134.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.47 : 23,615.61 = 7,426.78 : x
  2. Step 2: Convert to fraction form
    15,751.47/23,615.61 = 7,426.78/x
  3. Step 3: Cross multiply
    15,751.47x = 23,615.61 × 7,426.78
  4. Step 4: Simplify right side
    15,751.47x = 175,387,940.04
  5. Step 5: Solve for x
    x = 175,387,940.04/15,751.47
  6. Step 6: Final answer
    x = 11,134.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.