Home / 13,178.16-19,767.85-9,167.78

Finding the Fourth Proportional to 13,178.16, 19,767.85 and 9,167.78

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Solution

The fourth proportional to 13,178.16, 19,767.85 and 9,167.78 is: 13,752.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,178.16 : 19,767.85 = 9,167.78 : x
  2. Step 2: Convert to fraction form
    13,178.16/19,767.85 = 9,167.78/x
  3. Step 3: Cross multiply
    13,178.16x = 19,767.85 × 9,167.78
  4. Step 4: Simplify right side
    13,178.16x = 181,227,326.37
  5. Step 5: Solve for x
    x = 181,227,326.37/13,178.16
  6. Step 6: Final answer
    x = 13,752.10

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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.