Home / 8,935.24-12,331.19-5,159.10

Finding the Fourth Proportional to 8,935.24, 12,331.19 and 5,159.10

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Solution

The fourth proportional to 8,935.24, 12,331.19 and 5,159.10 is: 7,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.24 : 12,331.19 = 5,159.10 : x
  2. Step 2: Convert to fraction form
    8,935.24/12,331.19 = 5,159.10/x
  3. Step 3: Cross multiply
    8,935.24x = 12,331.19 × 5,159.10
  4. Step 4: Simplify right side
    8,935.24x = 63,617,855.23
  5. Step 5: Solve for x
    x = 63,617,855.23/8,935.24
  6. Step 6: Final answer
    x = 7,119.88

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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.