Home / 15,008.44-20,689.68-10,518.62

Finding the Fourth Proportional to 15,008.44, 20,689.68 and 10,518.62

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Solution

The fourth proportional to 15,008.44, 20,689.68 and 10,518.62 is: 14,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.44 : 20,689.68 = 10,518.62 : x
  2. Step 2: Convert to fraction form
    15,008.44/20,689.68 = 10,518.62/x
  3. Step 3: Cross multiply
    15,008.44x = 20,689.68 × 10,518.62
  4. Step 4: Simplify right side
    15,008.44x = 217,626,881.84
  5. Step 5: Solve for x
    x = 217,626,881.84/15,008.44
  6. Step 6: Final answer
    x = 14,500.30

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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.