Home / 12,979.38-19,466.72-4,547.14

Finding the Fourth Proportional to 12,979.38, 19,466.72 and 4,547.14

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Solution

The fourth proportional to 12,979.38, 19,466.72 and 4,547.14 is: 6,819.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,979.38 : 19,466.72 = 4,547.14 : x
  2. Step 2: Convert to fraction form
    12,979.38/19,466.72 = 4,547.14/x
  3. Step 3: Cross multiply
    12,979.38x = 19,466.72 × 4,547.14
  4. Step 4: Simplify right side
    12,979.38x = 88,517,901.18
  5. Step 5: Solve for x
    x = 88,517,901.18/12,979.38
  6. Step 6: Final answer
    x = 6,819.89

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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.