Home / 10,298.87-15,411.39-8,916.97

Finding the Fourth Proportional to 10,298.87, 15,411.39 and 8,916.97

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Solution

The fourth proportional to 10,298.87, 15,411.39 and 8,916.97 is: 13,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,298.87 : 15,411.39 = 8,916.97 : x
  2. Step 2: Convert to fraction form
    10,298.87/15,411.39 = 8,916.97/x
  3. Step 3: Cross multiply
    10,298.87x = 15,411.39 × 8,916.97
  4. Step 4: Simplify right side
    10,298.87x = 137,422,902.29
  5. Step 5: Solve for x
    x = 137,422,902.29/10,298.87
  6. Step 6: Final answer
    x = 13,343.49

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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.