Home / 15,897.18-23,829.57-7,129.74

Finding the Fourth Proportional to 15,897.18, 23,829.57 and 7,129.74

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Solution

The fourth proportional to 15,897.18, 23,829.57 and 7,129.74 is: 10,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,897.18 : 23,829.57 = 7,129.74 : x
  2. Step 2: Convert to fraction form
    15,897.18/23,829.57 = 7,129.74/x
  3. Step 3: Cross multiply
    15,897.18x = 23,829.57 × 7,129.74
  4. Step 4: Simplify right side
    15,897.18x = 169,898,638.41
  5. Step 5: Solve for x
    x = 169,898,638.41/15,897.18
  6. Step 6: Final answer
    x = 10,687.34

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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.