Home / 15,587.70-21,510.86-8,514.14

Finding the Fourth Proportional to 15,587.70, 21,510.86 and 8,514.14

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Solution

The fourth proportional to 15,587.70, 21,510.86 and 8,514.14 is: 11,749.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,587.70 : 21,510.86 = 8,514.14 : x
  2. Step 2: Convert to fraction form
    15,587.70/21,510.86 = 8,514.14/x
  3. Step 3: Cross multiply
    15,587.70x = 21,510.86 × 8,514.14
  4. Step 4: Simplify right side
    15,587.70x = 183,146,473.56
  5. Step 5: Solve for x
    x = 183,146,473.56/15,587.70
  6. Step 6: Final answer
    x = 11,749.42

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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.