Home / 8,073.04-11,140.38-5,420.08

Finding the Fourth Proportional to 8,073.04, 11,140.38 and 5,420.08

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Solution

The fourth proportional to 8,073.04, 11,140.38 and 5,420.08 is: 7,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,073.04 : 11,140.38 = 5,420.08 : x
  2. Step 2: Convert to fraction form
    8,073.04/11,140.38 = 5,420.08/x
  3. Step 3: Cross multiply
    8,073.04x = 11,140.38 × 5,420.08
  4. Step 4: Simplify right side
    8,073.04x = 60,381,750.83
  5. Step 5: Solve for x
    x = 60,381,750.83/8,073.04
  6. Step 6: Final answer
    x = 7,479.43

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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.