Home / 9,156.80-12,636.40-4,965.05

Finding the Fourth Proportional to 9,156.80, 12,636.40 and 4,965.05

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Solution

The fourth proportional to 9,156.80, 12,636.40 and 4,965.05 is: 6,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,156.80 : 12,636.40 = 4,965.05 : x
  2. Step 2: Convert to fraction form
    9,156.80/12,636.40 = 4,965.05/x
  3. Step 3: Cross multiply
    9,156.80x = 12,636.40 × 4,965.05
  4. Step 4: Simplify right side
    9,156.80x = 62,740,357.82
  5. Step 5: Solve for x
    x = 62,740,357.82/9,156.80
  6. Step 6: Final answer
    x = 6,851.78

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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.