Home / 15,290.15-21,101.42-8,576.21

Finding the Fourth Proportional to 15,290.15, 21,101.42 and 8,576.21

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Solution

The fourth proportional to 15,290.15, 21,101.42 and 8,576.21 is: 11,835.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.15 : 21,101.42 = 8,576.21 : x
  2. Step 2: Convert to fraction form
    15,290.15/21,101.42 = 8,576.21/x
  3. Step 3: Cross multiply
    15,290.15x = 21,101.42 × 8,576.21
  4. Step 4: Simplify right side
    15,290.15x = 180,970,209.22
  5. Step 5: Solve for x
    x = 180,970,209.22/15,290.15
  6. Step 6: Final answer
    x = 11,835.74

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Double scale
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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.