Home / 15,711.90-23,568.15-12,577.35

Finding the Fourth Proportional to 15,711.90, 23,568.15 and 12,577.35

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Solution

The fourth proportional to 15,711.90, 23,568.15 and 12,577.35 is: 18,866.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,711.90 : 23,568.15 = 12,577.35 : x
  2. Step 2: Convert to fraction form
    15,711.90/23,568.15 = 12,577.35/x
  3. Step 3: Cross multiply
    15,711.90x = 23,568.15 × 12,577.35
  4. Step 4: Simplify right side
    15,711.90x = 296,424,871.40
  5. Step 5: Solve for x
    x = 296,424,871.40/15,711.90
  6. Step 6: Final answer
    x = 18,866.27

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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.