Home / 15,006.16-20,708.31-8,292.25

Finding the Fourth Proportional to 15,006.16, 20,708.31 and 8,292.25

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Solution

The fourth proportional to 15,006.16, 20,708.31 and 8,292.25 is: 11,443.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,006.16 : 20,708.31 = 8,292.25 : x
  2. Step 2: Convert to fraction form
    15,006.16/20,708.31 = 8,292.25/x
  3. Step 3: Cross multiply
    15,006.16x = 20,708.31 × 8,292.25
  4. Step 4: Simplify right side
    15,006.16x = 171,718,483.60
  5. Step 5: Solve for x
    x = 171,718,483.60/15,006.16
  6. Step 6: Final answer
    x = 11,443.20

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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.