Home / 8,645.98-11,931.67-4,869.29

Finding the Fourth Proportional to 8,645.98, 11,931.67 and 4,869.29

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Solution

The fourth proportional to 8,645.98, 11,931.67 and 4,869.29 is: 6,719.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.98 : 11,931.67 = 4,869.29 : x
  2. Step 2: Convert to fraction form
    8,645.98/11,931.67 = 4,869.29/x
  3. Step 3: Cross multiply
    8,645.98x = 11,931.67 × 4,869.29
  4. Step 4: Simplify right side
    8,645.98x = 58,098,689.58
  5. Step 5: Solve for x
    x = 58,098,689.58/8,645.98
  6. Step 6: Final answer
    x = 6,719.74

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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.