Home / 10,031.40-15,019.20-7,558.62

Finding the Fourth Proportional to 10,031.40, 15,019.20 and 7,558.62

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Solution

The fourth proportional to 10,031.40, 15,019.20 and 7,558.62 is: 11,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.40 : 15,019.20 = 7,558.62 : x
  2. Step 2: Convert to fraction form
    10,031.40/15,019.20 = 7,558.62/x
  3. Step 3: Cross multiply
    10,031.40x = 15,019.20 × 7,558.62
  4. Step 4: Simplify right side
    10,031.40x = 113,524,425.50
  5. Step 5: Solve for x
    x = 113,524,425.50/10,031.40
  6. Step 6: Final answer
    x = 11,316.91

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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.