Home / 15,480.60-21,350.88-10,180.86

Finding the Fourth Proportional to 15,480.60, 21,350.88 and 10,180.86

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Solution

The fourth proportional to 15,480.60, 21,350.88 and 10,180.86 is: 14,041.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.60 : 21,350.88 = 10,180.86 : x
  2. Step 2: Convert to fraction form
    15,480.60/21,350.88 = 10,180.86/x
  3. Step 3: Cross multiply
    15,480.60x = 21,350.88 × 10,180.86
  4. Step 4: Simplify right side
    15,480.60x = 217,370,320.16
  5. Step 5: Solve for x
    x = 217,370,320.16/15,480.60
  6. Step 6: Final answer
    x = 14,041.47

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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.