Home / 9,281.40-12,808.58-5,247.91

Finding the Fourth Proportional to 9,281.40, 12,808.58 and 5,247.91

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Solution

The fourth proportional to 9,281.40, 12,808.58 and 5,247.91 is: 7,242.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,281.40 : 12,808.58 = 5,247.91 : x
  2. Step 2: Convert to fraction form
    9,281.40/12,808.58 = 5,247.91/x
  3. Step 3: Cross multiply
    9,281.40x = 12,808.58 × 5,247.91
  4. Step 4: Simplify right side
    9,281.40x = 67,218,256.17
  5. Step 5: Solve for x
    x = 67,218,256.17/9,281.40
  6. Step 6: Final answer
    x = 7,242.25

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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.