Home / 7,520.04-11,272.16-6,641.60

Finding the Fourth Proportional to 7,520.04, 11,272.16 and 6,641.60

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Solution

The fourth proportional to 7,520.04, 11,272.16 and 6,641.60 is: 9,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,520.04 : 11,272.16 = 6,641.60 : x
  2. Step 2: Convert to fraction form
    7,520.04/11,272.16 = 6,641.60/x
  3. Step 3: Cross multiply
    7,520.04x = 11,272.16 × 6,641.60
  4. Step 4: Simplify right side
    7,520.04x = 74,865,138.10
  5. Step 5: Solve for x
    x = 74,865,138.10/7,520.04
  6. Step 6: Final answer
    x = 9,955.42

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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.