Home / 8,717.04-13,077.13-3,178.16

Finding the Fourth Proportional to 8,717.04, 13,077.13 and 3,178.16

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Solution

The fourth proportional to 8,717.04, 13,077.13 and 3,178.16 is: 4,767.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.04 : 13,077.13 = 3,178.16 : x
  2. Step 2: Convert to fraction form
    8,717.04/13,077.13 = 3,178.16/x
  3. Step 3: Cross multiply
    8,717.04x = 13,077.13 × 3,178.16
  4. Step 4: Simplify right side
    8,717.04x = 41,561,211.48
  5. Step 5: Solve for x
    x = 41,561,211.48/8,717.04
  6. Step 6: Final answer
    x = 4,767.81

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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.