Home / 9,124.72-13,688.92-2,885.70

Finding the Fourth Proportional to 9,124.72, 13,688.92 and 2,885.70

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Solution

The fourth proportional to 9,124.72, 13,688.92 and 2,885.70 is: 4,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.72 : 13,688.92 = 2,885.70 : x
  2. Step 2: Convert to fraction form
    9,124.72/13,688.92 = 2,885.70/x
  3. Step 3: Cross multiply
    9,124.72x = 13,688.92 × 2,885.70
  4. Step 4: Simplify right side
    9,124.72x = 39,502,116.44
  5. Step 5: Solve for x
    x = 39,502,116.44/9,124.72
  6. Step 6: Final answer
    x = 4,329.13

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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.