Home / 15,560.70-21,474.28-8,487.51

Finding the Fourth Proportional to 15,560.70, 21,474.28 and 8,487.51

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Solution

The fourth proportional to 15,560.70, 21,474.28 and 8,487.51 is: 11,713.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.70 : 21,474.28 = 8,487.51 : x
  2. Step 2: Convert to fraction form
    15,560.70/21,474.28 = 8,487.51/x
  3. Step 3: Cross multiply
    15,560.70x = 21,474.28 × 8,487.51
  4. Step 4: Simplify right side
    15,560.70x = 182,263,166.24
  5. Step 5: Solve for x
    x = 182,263,166.24/15,560.70
  6. Step 6: Final answer
    x = 11,713.04

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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.