Home / 9,326.52-12,870.84-5,135.04

Finding the Fourth Proportional to 9,326.52, 12,870.84 and 5,135.04

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Solution

The fourth proportional to 9,326.52, 12,870.84 and 5,135.04 is: 7,086.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,326.52 : 12,870.84 = 5,135.04 : x
  2. Step 2: Convert to fraction form
    9,326.52/12,870.84 = 5,135.04/x
  3. Step 3: Cross multiply
    9,326.52x = 12,870.84 × 5,135.04
  4. Step 4: Simplify right side
    9,326.52x = 66,092,278.23
  5. Step 5: Solve for x
    x = 66,092,278.23/9,326.52
  6. Step 6: Final answer
    x = 7,086.49

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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.