Home / 15,280.14-21,086.40-8,567.44

Finding the Fourth Proportional to 15,280.14, 21,086.40 and 8,567.44

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Solution

The fourth proportional to 15,280.14, 21,086.40 and 8,567.44 is: 11,822.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.14 : 21,086.40 = 8,567.44 : x
  2. Step 2: Convert to fraction form
    15,280.14/21,086.40 = 8,567.44/x
  3. Step 3: Cross multiply
    15,280.14x = 21,086.40 × 8,567.44
  4. Step 4: Simplify right side
    15,280.14x = 180,656,466.82
  5. Step 5: Solve for x
    x = 180,656,466.82/15,280.14
  6. Step 6: Final answer
    x = 11,822.96

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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.