Home / 18,869.48-28,261.08-9,015.68

Finding the Fourth Proportional to 18,869.48, 28,261.08 and 9,015.68

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Solution

The fourth proportional to 18,869.48, 28,261.08 and 9,015.68 is: 13,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.48 : 28,261.08 = 9,015.68 : x
  2. Step 2: Convert to fraction form
    18,869.48/28,261.08 = 9,015.68/x
  3. Step 3: Cross multiply
    18,869.48x = 28,261.08 × 9,015.68
  4. Step 4: Simplify right side
    18,869.48x = 254,792,853.73
  5. Step 5: Solve for x
    x = 254,792,853.73/18,869.48
  6. Step 6: Final answer
    x = 13,502.91

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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.