Home / 15,442.67-21,310.37-9,069.14

Finding the Fourth Proportional to 15,442.67, 21,310.37 and 9,069.14

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Solution

The fourth proportional to 15,442.67, 21,310.37 and 9,069.14 is: 12,515.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442.67 : 21,310.37 = 9,069.14 : x
  2. Step 2: Convert to fraction form
    15,442.67/21,310.37 = 9,069.14/x
  3. Step 3: Cross multiply
    15,442.67x = 21,310.37 × 9,069.14
  4. Step 4: Simplify right side
    15,442.67x = 193,266,683.64
  5. Step 5: Solve for x
    x = 193,266,683.64/15,442.67
  6. Step 6: Final answer
    x = 12,515.11

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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.