Home / 18,966.02-28,452.70-7,278.33

Finding the Fourth Proportional to 18,966.02, 28,452.70 and 7,278.33

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Solution

The fourth proportional to 18,966.02, 28,452.70 and 7,278.33 is: 10,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.02 : 28,452.70 = 7,278.33 : x
  2. Step 2: Convert to fraction form
    18,966.02/28,452.70 = 7,278.33/x
  3. Step 3: Cross multiply
    18,966.02x = 28,452.70 × 7,278.33
  4. Step 4: Simplify right side
    18,966.02x = 207,088,139.99
  5. Step 5: Solve for x
    x = 207,088,139.99/18,966.02
  6. Step 6: Final answer
    x = 10,918.90

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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.