Home / 13,246.86-18,281.10-7,278.96

Finding the Fourth Proportional to 13,246.86, 18,281.10 and 7,278.96

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Solution

The fourth proportional to 13,246.86, 18,281.10 and 7,278.96 is: 10,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.86 : 18,281.10 = 7,278.96 : x
  2. Step 2: Convert to fraction form
    13,246.86/18,281.10 = 7,278.96/x
  3. Step 3: Cross multiply
    13,246.86x = 18,281.10 × 7,278.96
  4. Step 4: Simplify right side
    13,246.86x = 133,067,395.66
  5. Step 5: Solve for x
    x = 133,067,395.66/13,246.86
  6. Step 6: Final answer
    x = 10,045.20

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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.