Home / 10,853.12-14,979.52-6,377.28

Finding the Fourth Proportional to 10,853.12, 14,979.52 and 6,377.28

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Solution

The fourth proportional to 10,853.12, 14,979.52 and 6,377.28 is: 8,801.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.12 : 14,979.52 = 6,377.28 : x
  2. Step 2: Convert to fraction form
    10,853.12/14,979.52 = 6,377.28/x
  3. Step 3: Cross multiply
    10,853.12x = 14,979.52 × 6,377.28
  4. Step 4: Simplify right side
    10,853.12x = 95,528,593.31
  5. Step 5: Solve for x
    x = 95,528,593.31/10,853.12
  6. Step 6: Final answer
    x = 8,801.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.