Home / 15,586.05-21,508.41-8,512.50

Finding the Fourth Proportional to 15,586.05, 21,508.41 and 8,512.50

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Solution

The fourth proportional to 15,586.05, 21,508.41 and 8,512.50 is: 11,747.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,586.05 : 21,508.41 = 8,512.50 : x
  2. Step 2: Convert to fraction form
    15,586.05/21,508.41 = 8,512.50/x
  3. Step 3: Cross multiply
    15,586.05x = 21,508.41 × 8,512.50
  4. Step 4: Simplify right side
    15,586.05x = 183,090,340.13
  5. Step 5: Solve for x
    x = 183,090,340.13/15,586.05
  6. Step 6: Final answer
    x = 11,747.06

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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.