Home / 14,045.30-21,068.39-6,143.75

Finding the Fourth Proportional to 14,045.30, 21,068.39 and 6,143.75

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Solution

The fourth proportional to 14,045.30, 21,068.39 and 6,143.75 is: 9,215.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,045.30 : 21,068.39 = 6,143.75 : x
  2. Step 2: Convert to fraction form
    14,045.30/21,068.39 = 6,143.75/x
  3. Step 3: Cross multiply
    14,045.30x = 21,068.39 × 6,143.75
  4. Step 4: Simplify right side
    14,045.30x = 129,438,921.06
  5. Step 5: Solve for x
    x = 129,438,921.06/14,045.30
  6. Step 6: Final answer
    x = 9,215.82

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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.