Home / 13,712.02-20,569.65-8,785.60

Finding the Fourth Proportional to 13,712.02, 20,569.65 and 8,785.60

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Solution

The fourth proportional to 13,712.02, 20,569.65 and 8,785.60 is: 13,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.02 : 20,569.65 = 8,785.60 : x
  2. Step 2: Convert to fraction form
    13,712.02/20,569.65 = 8,785.60/x
  3. Step 3: Cross multiply
    13,712.02x = 20,569.65 × 8,785.60
  4. Step 4: Simplify right side
    13,712.02x = 180,716,717.04
  5. Step 5: Solve for x
    x = 180,716,717.04/13,712.02
  6. Step 6: Final answer
    x = 13,179.44

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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.