Home / 15,168.40-20,945.16-10,702.04

Finding the Fourth Proportional to 15,168.40, 20,945.16 and 10,702.04

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Solution

The fourth proportional to 15,168.40, 20,945.16 and 10,702.04 is: 14,777.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.40 : 20,945.16 = 10,702.04 : x
  2. Step 2: Convert to fraction form
    15,168.40/20,945.16 = 10,702.04/x
  3. Step 3: Cross multiply
    15,168.40x = 20,945.16 × 10,702.04
  4. Step 4: Simplify right side
    15,168.40x = 224,155,940.13
  5. Step 5: Solve for x
    x = 224,155,940.13/15,168.40
  6. Step 6: Final answer
    x = 14,777.82

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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.