Home / 25,140.47-37,710.11-12,657.14

Finding the Fourth Proportional to 25,140.47, 37,710.11 and 12,657.14

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Solution

The fourth proportional to 25,140.47, 37,710.11 and 12,657.14 is: 18,985.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.47 : 37,710.11 = 12,657.14 : x
  2. Step 2: Convert to fraction form
    25,140.47/37,710.11 = 12,657.14/x
  3. Step 3: Cross multiply
    25,140.47x = 37,710.11 × 12,657.14
  4. Step 4: Simplify right side
    25,140.47x = 477,302,141.69
  5. Step 5: Solve for x
    x = 477,302,141.69/25,140.47
  6. Step 6: Final answer
    x = 18,985.41

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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.