Home / 13,569.60-20,347.62-8,649.12

Finding the Fourth Proportional to 13,569.60, 20,347.62 and 8,649.12

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Solution

The fourth proportional to 13,569.60, 20,347.62 and 8,649.12 is: 12,969.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.60 : 20,347.62 = 8,649.12 : x
  2. Step 2: Convert to fraction form
    13,569.60/20,347.62 = 8,649.12/x
  3. Step 3: Cross multiply
    13,569.60x = 20,347.62 × 8,649.12
  4. Step 4: Simplify right side
    13,569.60x = 175,989,007.09
  5. Step 5: Solve for x
    x = 175,989,007.09/13,569.60
  6. Step 6: Final answer
    x = 12,969.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.