Home / 15,366.28-21,206.07-8,651.86

Finding the Fourth Proportional to 15,366.28, 21,206.07 and 8,651.86

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Solution

The fourth proportional to 15,366.28, 21,206.07 and 8,651.86 is: 11,939.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.28 : 21,206.07 = 8,651.86 : x
  2. Step 2: Convert to fraction form
    15,366.28/21,206.07 = 8,651.86/x
  3. Step 3: Cross multiply
    15,366.28x = 21,206.07 × 8,651.86
  4. Step 4: Simplify right side
    15,366.28x = 183,471,948.79
  5. Step 5: Solve for x
    x = 183,471,948.79/15,366.28
  6. Step 6: Final answer
    x = 11,939.91

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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.