Home / 8,720.24-12,030.12-5,732.24

Finding the Fourth Proportional to 8,720.24, 12,030.12 and 5,732.24

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Solution

The fourth proportional to 8,720.24, 12,030.12 and 5,732.24 is: 7,907.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.24 : 12,030.12 = 5,732.24 : x
  2. Step 2: Convert to fraction form
    8,720.24/12,030.12 = 5,732.24/x
  3. Step 3: Cross multiply
    8,720.24x = 12,030.12 × 5,732.24
  4. Step 4: Simplify right side
    8,720.24x = 68,959,535.07
  5. Step 5: Solve for x
    x = 68,959,535.07/8,720.24
  6. Step 6: Final answer
    x = 7,907.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.