Home / 13,248.72-18,284.13-8,764.65

Finding the Fourth Proportional to 13,248.72, 18,284.13 and 8,764.65

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Solution

The fourth proportional to 13,248.72, 18,284.13 and 8,764.65 is: 12,095.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.72 : 18,284.13 = 8,764.65 : x
  2. Step 2: Convert to fraction form
    13,248.72/18,284.13 = 8,764.65/x
  3. Step 3: Cross multiply
    13,248.72x = 18,284.13 × 8,764.65
  4. Step 4: Simplify right side
    13,248.72x = 160,254,000.00
  5. Step 5: Solve for x
    x = 160,254,000.00/13,248.72
  6. Step 6: Final answer
    x = 12,095.81

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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.