Home / 13,247.58-18,281.36-7,279.10

Finding the Fourth Proportional to 13,247.58, 18,281.36 and 7,279.10

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Solution

The fourth proportional to 13,247.58, 18,281.36 and 7,279.10 is: 10,044.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247.58 : 18,281.36 = 7,279.10 : x
  2. Step 2: Convert to fraction form
    13,247.58/18,281.36 = 7,279.10/x
  3. Step 3: Cross multiply
    13,247.58x = 18,281.36 × 7,279.10
  4. Step 4: Simplify right side
    13,247.58x = 133,071,847.58
  5. Step 5: Solve for x
    x = 133,071,847.58/13,247.58
  6. Step 6: Final answer
    x = 10,044.99

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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.