Home / 14,138.47-21,211.62-4,277.80

Finding the Fourth Proportional to 14,138.47, 21,211.62 and 4,277.80

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Solution

The fourth proportional to 14,138.47, 21,211.62 and 4,277.80 is: 6,417.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.47 : 21,211.62 = 4,277.80 : x
  2. Step 2: Convert to fraction form
    14,138.47/21,211.62 = 4,277.80/x
  3. Step 3: Cross multiply
    14,138.47x = 21,211.62 × 4,277.80
  4. Step 4: Simplify right side
    14,138.47x = 90,739,068.04
  5. Step 5: Solve for x
    x = 90,739,068.04/14,138.47
  6. Step 6: Final answer
    x = 6,417.88

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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.