Home / 10,989.68-16,491.76-10,260.64

Finding the Fourth Proportional to 10,989.68, 16,491.76 and 10,260.64

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Solution

The fourth proportional to 10,989.68, 16,491.76 and 10,260.64 is: 15,397.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.68 : 16,491.76 = 10,260.64 : x
  2. Step 2: Convert to fraction form
    10,989.68/16,491.76 = 10,260.64/x
  3. Step 3: Cross multiply
    10,989.68x = 16,491.76 × 10,260.64
  4. Step 4: Simplify right side
    10,989.68x = 169,216,012.33
  5. Step 5: Solve for x
    x = 169,216,012.33/10,989.68
  6. Step 6: Final answer
    x = 15,397.72

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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.