Home / 8,712.17-12,024.75-5,357.90

Finding the Fourth Proportional to 8,712.17, 12,024.75 and 5,357.90

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Solution

The fourth proportional to 8,712.17, 12,024.75 and 5,357.90 is: 7,395.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.17 : 12,024.75 = 5,357.90 : x
  2. Step 2: Convert to fraction form
    8,712.17/12,024.75 = 5,357.90/x
  3. Step 3: Cross multiply
    8,712.17x = 12,024.75 × 5,357.90
  4. Step 4: Simplify right side
    8,712.17x = 64,427,347.90
  5. Step 5: Solve for x
    x = 64,427,347.90/8,712.17
  6. Step 6: Final answer
    x = 7,395.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.