Home / 7,455.60-11,159.10-5,981.40

Finding the Fourth Proportional to 7,455.60, 11,159.10 and 5,981.40

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Solution

The fourth proportional to 7,455.60, 11,159.10 and 5,981.40 is: 8,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.60 : 11,159.10 = 5,981.40 : x
  2. Step 2: Convert to fraction form
    7,455.60/11,159.10 = 5,981.40/x
  3. Step 3: Cross multiply
    7,455.60x = 11,159.10 × 5,981.40
  4. Step 4: Simplify right side
    7,455.60x = 66,747,040.74
  5. Step 5: Solve for x
    x = 66,747,040.74/7,455.60
  6. Step 6: Final answer
    x = 8,952.60

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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.