Home / 12,963.04-18,009.76-12,807.52

Finding the Fourth Proportional to 12,963.04, 18,009.76 and 12,807.52

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Solution

The fourth proportional to 12,963.04, 18,009.76 and 12,807.52 is: 17,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,963.04 : 18,009.76 = 12,807.52 : x
  2. Step 2: Convert to fraction form
    12,963.04/18,009.76 = 12,807.52/x
  3. Step 3: Cross multiply
    12,963.04x = 18,009.76 × 12,807.52
  4. Step 4: Simplify right side
    12,963.04x = 230,660,361.40
  5. Step 5: Solve for x
    x = 230,660,361.40/12,963.04
  6. Step 6: Final answer
    x = 17,793.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.