Home / 18,963.18-28,448.10-6,480.24

Finding the Fourth Proportional to 18,963.18, 28,448.10 and 6,480.24

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Solution

The fourth proportional to 18,963.18, 28,448.10 and 6,480.24 is: 9,721.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.18 : 28,448.10 = 6,480.24 : x
  2. Step 2: Convert to fraction form
    18,963.18/28,448.10 = 6,480.24/x
  3. Step 3: Cross multiply
    18,963.18x = 28,448.10 × 6,480.24
  4. Step 4: Simplify right side
    18,963.18x = 184,350,515.54
  5. Step 5: Solve for x
    x = 184,350,515.54/18,963.18
  6. Step 6: Final answer
    x = 9,721.50

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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.