Home / 15,290.40-21,101.76-8,576.46

Finding the Fourth Proportional to 15,290.40, 21,101.76 and 8,576.46

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Solution

The fourth proportional to 15,290.40, 21,101.76 and 8,576.46 is: 11,836.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.40 : 21,101.76 = 8,576.46 : x
  2. Step 2: Convert to fraction form
    15,290.40/21,101.76 = 8,576.46/x
  3. Step 3: Cross multiply
    15,290.40x = 21,101.76 × 8,576.46
  4. Step 4: Simplify right side
    15,290.40x = 180,978,400.57
  5. Step 5: Solve for x
    x = 180,978,400.57/15,290.40
  6. Step 6: Final answer
    x = 11,836.08

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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.