Home / 13,248.30-18,281.77-7,279.84

Finding the Fourth Proportional to 13,248.30, 18,281.77 and 7,279.84

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Solution

The fourth proportional to 13,248.30, 18,281.77 and 7,279.84 is: 10,045.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.30 : 18,281.77 = 7,279.84 : x
  2. Step 2: Convert to fraction form
    13,248.30/18,281.77 = 7,279.84/x
  3. Step 3: Cross multiply
    13,248.30x = 18,281.77 × 7,279.84
  4. Step 4: Simplify right side
    13,248.30x = 133,088,365.17
  5. Step 5: Solve for x
    x = 133,088,365.17/13,248.30
  6. Step 6: Final answer
    x = 10,045.69

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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.