Home / 9,291.14-12,818.61-5,309.45

Finding the Fourth Proportional to 9,291.14, 12,818.61 and 5,309.45

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Solution

The fourth proportional to 9,291.14, 12,818.61 and 5,309.45 is: 7,325.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.14 : 12,818.61 = 5,309.45 : x
  2. Step 2: Convert to fraction form
    9,291.14/12,818.61 = 5,309.45/x
  3. Step 3: Cross multiply
    9,291.14x = 12,818.61 × 5,309.45
  4. Step 4: Simplify right side
    9,291.14x = 68,059,704.77
  5. Step 5: Solve for x
    x = 68,059,704.77/9,291.14
  6. Step 6: Final answer
    x = 7,325.23

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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.