Home / 15,344.64-21,185.28-10,627.20

Finding the Fourth Proportional to 15,344.64, 21,185.28 and 10,627.20

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Solution

The fourth proportional to 15,344.64, 21,185.28 and 10,627.20 is: 14,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.64 : 21,185.28 = 10,627.20 : x
  2. Step 2: Convert to fraction form
    15,344.64/21,185.28 = 10,627.20/x
  3. Step 3: Cross multiply
    15,344.64x = 21,185.28 × 10,627.20
  4. Step 4: Simplify right side
    15,344.64x = 225,140,207.62
  5. Step 5: Solve for x
    x = 225,140,207.62/15,344.64
  6. Step 6: Final answer
    x = 14,672.24

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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.