Home / 10,087.40-15,063.09-8,242.20

Finding the Fourth Proportional to 10,087.40, 15,063.09 and 8,242.20

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Solution

The fourth proportional to 10,087.40, 15,063.09 and 8,242.20 is: 12,307.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.40 : 15,063.09 = 8,242.20 : x
  2. Step 2: Convert to fraction form
    10,087.40/15,063.09 = 8,242.20/x
  3. Step 3: Cross multiply
    10,087.40x = 15,063.09 × 8,242.20
  4. Step 4: Simplify right side
    10,087.40x = 124,153,000.40
  5. Step 5: Solve for x
    x = 124,153,000.40/10,087.40
  6. Step 6: Final answer
    x = 12,307.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.