Home / 15,828.38-21,841.69-8,754.65

Finding the Fourth Proportional to 15,828.38, 21,841.69 and 8,754.65

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Solution

The fourth proportional to 15,828.38, 21,841.69 and 8,754.65 is: 12,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,828.38 : 21,841.69 = 8,754.65 : x
  2. Step 2: Convert to fraction form
    15,828.38/21,841.69 = 8,754.65/x
  3. Step 3: Cross multiply
    15,828.38x = 21,841.69 × 8,754.65
  4. Step 4: Simplify right side
    15,828.38x = 191,216,280.40
  5. Step 5: Solve for x
    x = 191,216,280.40/15,828.38
  6. Step 6: Final answer
    x = 12,080.60

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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.