Home / 10,630.40-15,921.29-5,087.63

Finding the Fourth Proportional to 10,630.40, 15,921.29 and 5,087.63

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Solution

The fourth proportional to 10,630.40, 15,921.29 and 5,087.63 is: 7,619.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,630.40 : 15,921.29 = 5,087.63 : x
  2. Step 2: Convert to fraction form
    10,630.40/15,921.29 = 5,087.63/x
  3. Step 3: Cross multiply
    10,630.40x = 15,921.29 × 5,087.63
  4. Step 4: Simplify right side
    10,630.40x = 81,001,685.17
  5. Step 5: Solve for x
    x = 81,001,685.17/10,630.40
  6. Step 6: Final answer
    x = 7,619.82

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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.