Home / 10,008.87-15,012.70-2,988.91

Finding the Fourth Proportional to 10,008.87, 15,012.70 and 2,988.91

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Solution

The fourth proportional to 10,008.87, 15,012.70 and 2,988.91 is: 4,483.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,008.87 : 15,012.70 = 2,988.91 : x
  2. Step 2: Convert to fraction form
    10,008.87/15,012.70 = 2,988.91/x
  3. Step 3: Cross multiply
    10,008.87x = 15,012.70 × 2,988.91
  4. Step 4: Simplify right side
    10,008.87x = 44,871,519.15
  5. Step 5: Solve for x
    x = 44,871,519.15/10,008.87
  6. Step 6: Final answer
    x = 4,483.18

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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.