Home / 17,488.02-26,239.20-12,831.78

Finding the Fourth Proportional to 17,488.02, 26,239.20 and 12,831.78

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Solution

The fourth proportional to 17,488.02, 26,239.20 and 12,831.78 is: 19,252.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,488.02 : 26,239.20 = 12,831.78 : x
  2. Step 2: Convert to fraction form
    17,488.02/26,239.20 = 12,831.78/x
  3. Step 3: Cross multiply
    17,488.02x = 26,239.20 × 12,831.78
  4. Step 4: Simplify right side
    17,488.02x = 336,695,641.78
  5. Step 5: Solve for x
    x = 336,695,641.78/17,488.02
  6. Step 6: Final answer
    x = 19,252.93

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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.