Home / 10,141.64-13,979.58-9,326.98

Finding the Fourth Proportional to 10,141.64, 13,979.58 and 9,326.98

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Solution

The fourth proportional to 10,141.64, 13,979.58 and 9,326.98 is: 12,856.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,141.64 : 13,979.58 = 9,326.98 : x
  2. Step 2: Convert to fraction form
    10,141.64/13,979.58 = 9,326.98/x
  3. Step 3: Cross multiply
    10,141.64x = 13,979.58 × 9,326.98
  4. Step 4: Simplify right side
    10,141.64x = 130,387,228.12
  5. Step 5: Solve for x
    x = 130,387,228.12/10,141.64
  6. Step 6: Final answer
    x = 12,856.63

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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.