Home / 9,307.40-12,843.38-5,328.20

Finding the Fourth Proportional to 9,307.40, 12,843.38 and 5,328.20

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Solution

The fourth proportional to 9,307.40, 12,843.38 and 5,328.20 is: 7,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.40 : 12,843.38 = 5,328.20 : x
  2. Step 2: Convert to fraction form
    9,307.40/12,843.38 = 5,328.20/x
  3. Step 3: Cross multiply
    9,307.40x = 12,843.38 × 5,328.20
  4. Step 4: Simplify right side
    9,307.40x = 68,432,097.32
  5. Step 5: Solve for x
    x = 68,432,097.32/9,307.40
  6. Step 6: Final answer
    x = 7,352.44

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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.