Home / 15,199.18-20,983.64-11,585.76

Finding the Fourth Proportional to 15,199.18, 20,983.64 and 11,585.76

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Solution

The fourth proportional to 15,199.18, 20,983.64 and 11,585.76 is: 15,995.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,199.18 : 20,983.64 = 11,585.76 : x
  2. Step 2: Convert to fraction form
    15,199.18/20,983.64 = 11,585.76/x
  3. Step 3: Cross multiply
    15,199.18x = 20,983.64 × 11,585.76
  4. Step 4: Simplify right side
    15,199.18x = 243,111,416.97
  5. Step 5: Solve for x
    x = 243,111,416.97/15,199.18
  6. Step 6: Final answer
    x = 15,995.04

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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.