Home / 12,750.06-19,121.41-5,356.18

Finding the Fourth Proportional to 12,750.06, 19,121.41 and 5,356.18

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Solution

The fourth proportional to 12,750.06, 19,121.41 and 5,356.18 is: 8,032.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,750.06 : 19,121.41 = 5,356.18 : x
  2. Step 2: Convert to fraction form
    12,750.06/19,121.41 = 5,356.18/x
  3. Step 3: Cross multiply
    12,750.06x = 19,121.41 × 5,356.18
  4. Step 4: Simplify right side
    12,750.06x = 102,417,713.81
  5. Step 5: Solve for x
    x = 102,417,713.81/12,750.06
  6. Step 6: Final answer
    x = 8,032.72

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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.