Home / 10,966.38-15,136.33-6,488.49

Finding the Fourth Proportional to 10,966.38, 15,136.33 and 6,488.49

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Solution

The fourth proportional to 10,966.38, 15,136.33 and 6,488.49 is: 8,955.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,966.38 : 15,136.33 = 6,488.49 : x
  2. Step 2: Convert to fraction form
    10,966.38/15,136.33 = 6,488.49/x
  3. Step 3: Cross multiply
    10,966.38x = 15,136.33 × 6,488.49
  4. Step 4: Simplify right side
    10,966.38x = 98,211,925.84
  5. Step 5: Solve for x
    x = 98,211,925.84/10,966.38
  6. Step 6: Final answer
    x = 8,955.73

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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.