Home / 8,753.68-12,088.28-5,615.32

Finding the Fourth Proportional to 8,753.68, 12,088.28 and 5,615.32

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Solution

The fourth proportional to 8,753.68, 12,088.28 and 5,615.32 is: 7,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.68 : 12,088.28 = 5,615.32 : x
  2. Step 2: Convert to fraction form
    8,753.68/12,088.28 = 5,615.32/x
  3. Step 3: Cross multiply
    8,753.68x = 12,088.28 × 5,615.32
  4. Step 4: Simplify right side
    8,753.68x = 67,879,560.45
  5. Step 5: Solve for x
    x = 67,879,560.45/8,753.68
  6. Step 6: Final answer
    x = 7,754.40

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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.