Home / 9,290.24-12,820.80-5,565.44

Finding the Fourth Proportional to 9,290.24, 12,820.80 and 5,565.44

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Solution

The fourth proportional to 9,290.24, 12,820.80 and 5,565.44 is: 7,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,290.24 : 12,820.80 = 5,565.44 : x
  2. Step 2: Convert to fraction form
    9,290.24/12,820.80 = 5,565.44/x
  3. Step 3: Cross multiply
    9,290.24x = 12,820.80 × 5,565.44
  4. Step 4: Simplify right side
    9,290.24x = 71,353,393.15
  5. Step 5: Solve for x
    x = 71,353,393.15/9,290.24
  6. Step 6: Final answer
    x = 7,680.47

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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.