Home / 10,579.13-15,854.70-5,638.13

Finding the Fourth Proportional to 10,579.13, 15,854.70 and 5,638.13

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Solution

The fourth proportional to 10,579.13, 15,854.70 and 5,638.13 is: 8,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.13 : 15,854.70 = 5,638.13 : x
  2. Step 2: Convert to fraction form
    10,579.13/15,854.70 = 5,638.13/x
  3. Step 3: Cross multiply
    10,579.13x = 15,854.70 × 5,638.13
  4. Step 4: Simplify right side
    10,579.13x = 89,390,859.71
  5. Step 5: Solve for x
    x = 89,390,859.71/10,579.13
  6. Step 6: Final answer
    x = 8,449.74

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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.