Home / 15,323.70-21,146.43-8,518.14

Finding the Fourth Proportional to 15,323.70, 21,146.43 and 8,518.14

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Solution

The fourth proportional to 15,323.70, 21,146.43 and 8,518.14 is: 11,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.70 : 21,146.43 = 8,518.14 : x
  2. Step 2: Convert to fraction form
    15,323.70/21,146.43 = 8,518.14/x
  3. Step 3: Cross multiply
    15,323.70x = 21,146.43 × 8,518.14
  4. Step 4: Simplify right side
    15,323.70x = 180,128,251.24
  5. Step 5: Solve for x
    x = 180,128,251.24/15,323.70
  6. Step 6: Final answer
    x = 11,754.88

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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.