Home / 14,187.28-21,280.98-7,953.66

Finding the Fourth Proportional to 14,187.28, 21,280.98 and 7,953.66

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Solution

The fourth proportional to 14,187.28, 21,280.98 and 7,953.66 is: 11,930.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.28 : 21,280.98 = 7,953.66 : x
  2. Step 2: Convert to fraction form
    14,187.28/21,280.98 = 7,953.66/x
  3. Step 3: Cross multiply
    14,187.28x = 21,280.98 × 7,953.66
  4. Step 4: Simplify right side
    14,187.28x = 169,261,679.39
  5. Step 5: Solve for x
    x = 169,261,679.39/14,187.28
  6. Step 6: Final answer
    x = 11,930.52

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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.