Home / 13,247.33-18,281.16-7,278.84

Finding the Fourth Proportional to 13,247.33, 18,281.16 and 7,278.84

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Solution

The fourth proportional to 13,247.33, 18,281.16 and 7,278.84 is: 10,044.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.33 : 18,281.16 = 7,278.84 : x
  2. Step 2: Convert to fraction form
    13,247.33/18,281.16 = 7,278.84/x
  3. Step 3: Cross multiply
    13,247.33x = 18,281.16 × 7,278.84
  4. Step 4: Simplify right side
    13,247.33x = 133,065,638.65
  5. Step 5: Solve for x
    x = 133,065,638.65/13,247.33
  6. Step 6: Final answer
    x = 10,044.72

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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.