Home / 10,131.68-13,972.28-6,722.69

Finding the Fourth Proportional to 10,131.68, 13,972.28 and 6,722.69

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Solution

The fourth proportional to 10,131.68, 13,972.28 and 6,722.69 is: 9,271.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.68 : 13,972.28 = 6,722.69 : x
  2. Step 2: Convert to fraction form
    10,131.68/13,972.28 = 6,722.69/x
  3. Step 3: Cross multiply
    10,131.68x = 13,972.28 × 6,722.69
  4. Step 4: Simplify right side
    10,131.68x = 93,931,203.56
  5. Step 5: Solve for x
    x = 93,931,203.56/10,131.68
  6. Step 6: Final answer
    x = 9,271.04

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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.