Home / 12,275.26-18,256.54-12,144.04

Finding the Fourth Proportional to 12,275.26, 18,256.54 and 12,144.04

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Solution

The fourth proportional to 12,275.26, 18,256.54 and 12,144.04 is: 18,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.26 : 18,256.54 = 12,144.04 : x
  2. Step 2: Convert to fraction form
    12,275.26/18,256.54 = 12,144.04/x
  3. Step 3: Cross multiply
    12,275.26x = 18,256.54 × 12,144.04
  4. Step 4: Simplify right side
    12,275.26x = 221,708,152.02
  5. Step 5: Solve for x
    x = 221,708,152.02/12,275.26
  6. Step 6: Final answer
    x = 18,061.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.