Home / 15,299.17-21,113.19-8,585.29

Finding the Fourth Proportional to 15,299.17, 21,113.19 and 8,585.29

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Solution

The fourth proportional to 15,299.17, 21,113.19 and 8,585.29 is: 11,847.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.17 : 21,113.19 = 8,585.29 : x
  2. Step 2: Convert to fraction form
    15,299.17/21,113.19 = 8,585.29/x
  3. Step 3: Cross multiply
    15,299.17x = 21,113.19 × 8,585.29
  4. Step 4: Simplify right side
    15,299.17x = 181,262,858.98
  5. Step 5: Solve for x
    x = 181,262,858.98/15,299.17
  6. Step 6: Final answer
    x = 11,847.89

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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.