Home / 14,438.69-19,925.70-8,151.20

Finding the Fourth Proportional to 14,438.69, 19,925.70 and 8,151.20

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Solution

The fourth proportional to 14,438.69, 19,925.70 and 8,151.20 is: 11,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.69 : 19,925.70 = 8,151.20 : x
  2. Step 2: Convert to fraction form
    14,438.69/19,925.70 = 8,151.20/x
  3. Step 3: Cross multiply
    14,438.69x = 19,925.70 × 8,151.20
  4. Step 4: Simplify right side
    14,438.69x = 162,418,365.84
  5. Step 5: Solve for x
    x = 162,418,365.84/14,438.69
  6. Step 6: Final answer
    x = 11,248.83

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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.