Home / 9,339.27-12,888.19-5,306.10

Finding the Fourth Proportional to 9,339.27, 12,888.19 and 5,306.10

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Solution

The fourth proportional to 9,339.27, 12,888.19 and 5,306.10 is: 7,322.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.27 : 12,888.19 = 5,306.10 : x
  2. Step 2: Convert to fraction form
    9,339.27/12,888.19 = 5,306.10/x
  3. Step 3: Cross multiply
    9,339.27x = 12,888.19 × 5,306.10
  4. Step 4: Simplify right side
    9,339.27x = 68,386,041.54
  5. Step 5: Solve for x
    x = 68,386,041.54/9,339.27
  6. Step 6: Final answer
    x = 7,322.42

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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.