Home / 8,916.35-12,301.61-5,138.17

Finding the Fourth Proportional to 8,916.35, 12,301.61 and 5,138.17

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Solution

The fourth proportional to 8,916.35, 12,301.61 and 5,138.17 is: 7,088.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.35 : 12,301.61 = 5,138.17 : x
  2. Step 2: Convert to fraction form
    8,916.35/12,301.61 = 5,138.17/x
  3. Step 3: Cross multiply
    8,916.35x = 12,301.61 × 5,138.17
  4. Step 4: Simplify right side
    8,916.35x = 63,207,707.01
  5. Step 5: Solve for x
    x = 63,207,707.01/8,916.35
  6. Step 6: Final answer
    x = 7,088.97

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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.