Home / 9,311.85-12,851.52-5,775.59

Finding the Fourth Proportional to 9,311.85, 12,851.52 and 5,775.59

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Solution

The fourth proportional to 9,311.85, 12,851.52 and 5,775.59 is: 7,971.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.85 : 12,851.52 = 5,775.59 : x
  2. Step 2: Convert to fraction form
    9,311.85/12,851.52 = 5,775.59/x
  3. Step 3: Cross multiply
    9,311.85x = 12,851.52 × 5,775.59
  4. Step 4: Simplify right side
    9,311.85x = 74,225,110.40
  5. Step 5: Solve for x
    x = 74,225,110.40/9,311.85
  6. Step 6: Final answer
    x = 7,971.04

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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.