Home / 13,246.24-18,280.14-7,278.46

Finding the Fourth Proportional to 13,246.24, 18,280.14 and 7,278.46

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Solution

The fourth proportional to 13,246.24, 18,280.14 and 7,278.46 is: 10,044.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.24 : 18,280.14 = 7,278.46 : x
  2. Step 2: Convert to fraction form
    13,246.24/18,280.14 = 7,278.46/x
  3. Step 3: Cross multiply
    13,246.24x = 18,280.14 × 7,278.46
  4. Step 4: Simplify right side
    13,246.24x = 133,051,267.78
  5. Step 5: Solve for x
    x = 133,051,267.78/13,246.24
  6. Step 6: Final answer
    x = 10,044.46

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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.