Home / 15,760.29-21,749.13-8,590.62

Finding the Fourth Proportional to 15,760.29, 21,749.13 and 8,590.62

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Solution

The fourth proportional to 15,760.29, 21,749.13 and 8,590.62 is: 11,855.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,760.29 : 21,749.13 = 8,590.62 : x
  2. Step 2: Convert to fraction form
    15,760.29/21,749.13 = 8,590.62/x
  3. Step 3: Cross multiply
    15,760.29x = 21,749.13 × 8,590.62
  4. Step 4: Simplify right side
    15,760.29x = 186,838,511.16
  5. Step 5: Solve for x
    x = 186,838,511.16/15,760.29
  6. Step 6: Final answer
    x = 11,855.02

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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.