Home / 12,882.02-19,326.87-5,389.19

Finding the Fourth Proportional to 12,882.02, 19,326.87 and 5,389.19

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Solution

The fourth proportional to 12,882.02, 19,326.87 and 5,389.19 is: 8,085.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.02 : 19,326.87 = 5,389.19 : x
  2. Step 2: Convert to fraction form
    12,882.02/19,326.87 = 5,389.19/x
  3. Step 3: Cross multiply
    12,882.02x = 19,326.87 × 5,389.19
  4. Step 4: Simplify right side
    12,882.02x = 104,156,077.90
  5. Step 5: Solve for x
    x = 104,156,077.90/12,882.02
  6. Step 6: Final answer
    x = 8,085.39

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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.