Home / 14,489.18-19,995.56-8,115.69

Finding the Fourth Proportional to 14,489.18, 19,995.56 and 8,115.69

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Solution

The fourth proportional to 14,489.18, 19,995.56 and 8,115.69 is: 11,199.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.18 : 19,995.56 = 8,115.69 : x
  2. Step 2: Convert to fraction form
    14,489.18/19,995.56 = 8,115.69/x
  3. Step 3: Cross multiply
    14,489.18x = 19,995.56 × 8,115.69
  4. Step 4: Simplify right side
    14,489.18x = 162,277,831.18
  5. Step 5: Solve for x
    x = 162,277,831.18/14,489.18
  6. Step 6: Final answer
    x = 11,199.93

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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.