Home / 14,188.95-21,279.98-6,287.11

Finding the Fourth Proportional to 14,188.95, 21,279.98 and 6,287.11

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Solution

The fourth proportional to 14,188.95, 21,279.98 and 6,287.11 is: 9,429.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,188.95 : 21,279.98 = 6,287.11 : x
  2. Step 2: Convert to fraction form
    14,188.95/21,279.98 = 6,287.11/x
  3. Step 3: Cross multiply
    14,188.95x = 21,279.98 × 6,287.11
  4. Step 4: Simplify right side
    14,188.95x = 133,789,537.58
  5. Step 5: Solve for x
    x = 133,789,537.58/14,188.95
  6. Step 6: Final answer
    x = 9,429.14

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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.