Home / 14,151.28-19,528.68-7,778.04

Finding the Fourth Proportional to 14,151.28, 19,528.68 and 7,778.04

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Solution

The fourth proportional to 14,151.28, 19,528.68 and 7,778.04 is: 10,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.28 : 19,528.68 = 7,778.04 : x
  2. Step 2: Convert to fraction form
    14,151.28/19,528.68 = 7,778.04/x
  3. Step 3: Cross multiply
    14,151.28x = 19,528.68 × 7,778.04
  4. Step 4: Simplify right side
    14,151.28x = 151,894,854.19
  5. Step 5: Solve for x
    x = 151,894,854.19/14,151.28
  6. Step 6: Final answer
    x = 10,733.65

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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.