Home / 18,888.20-28,292.64-9,017.54

Finding the Fourth Proportional to 18,888.20, 28,292.64 and 9,017.54

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Solution

The fourth proportional to 18,888.20, 28,292.64 and 9,017.54 is: 13,507.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,888.20 : 28,292.64 = 9,017.54 : x
  2. Step 2: Convert to fraction form
    18,888.20/28,292.64 = 9,017.54/x
  3. Step 3: Cross multiply
    18,888.20x = 28,292.64 × 9,017.54
  4. Step 4: Simplify right side
    18,888.20x = 255,130,012.91
  5. Step 5: Solve for x
    x = 255,130,012.91/18,888.20
  6. Step 6: Final answer
    x = 13,507.38

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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.