Home / 13,312.64-18,371.04-7,344.20

Finding the Fourth Proportional to 13,312.64, 18,371.04 and 7,344.20

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Solution

The fourth proportional to 13,312.64, 18,371.04 and 7,344.20 is: 10,134.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.64 : 18,371.04 = 7,344.20 : x
  2. Step 2: Convert to fraction form
    13,312.64/18,371.04 = 7,344.20/x
  3. Step 3: Cross multiply
    13,312.64x = 18,371.04 × 7,344.20
  4. Step 4: Simplify right side
    13,312.64x = 134,920,591.97
  5. Step 5: Solve for x
    x = 134,920,591.97/13,312.64
  6. Step 6: Final answer
    x = 10,134.77

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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.