Home / 15,172.47-22,761.96-5,312.07

Finding the Fourth Proportional to 15,172.47, 22,761.96 and 5,312.07

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Solution

The fourth proportional to 15,172.47, 22,761.96 and 5,312.07 is: 7,969.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,172.47 : 22,761.96 = 5,312.07 : x
  2. Step 2: Convert to fraction form
    15,172.47/22,761.96 = 5,312.07/x
  3. Step 3: Cross multiply
    15,172.47x = 22,761.96 × 5,312.07
  4. Step 4: Simplify right side
    15,172.47x = 120,913,124.86
  5. Step 5: Solve for x
    x = 120,913,124.86/15,172.47
  6. Step 6: Final answer
    x = 7,969.24

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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.