Home / 8,616.46-11,890.56-5,031.76

Finding the Fourth Proportional to 8,616.46, 11,890.56 and 5,031.76

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Solution

The fourth proportional to 8,616.46, 11,890.56 and 5,031.76 is: 6,943.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.46 : 11,890.56 = 5,031.76 : x
  2. Step 2: Convert to fraction form
    8,616.46/11,890.56 = 5,031.76/x
  3. Step 3: Cross multiply
    8,616.46x = 11,890.56 × 5,031.76
  4. Step 4: Simplify right side
    8,616.46x = 59,830,444.19
  5. Step 5: Solve for x
    x = 59,830,444.19/8,616.46
  6. Step 6: Final answer
    x = 6,943.74

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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.