Home / 15,408.55-21,267.93-9,442.90

Finding the Fourth Proportional to 15,408.55, 21,267.93 and 9,442.90

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Solution

The fourth proportional to 15,408.55, 21,267.93 and 9,442.90 is: 13,033.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,408.55 : 21,267.93 = 9,442.90 : x
  2. Step 2: Convert to fraction form
    15,408.55/21,267.93 = 9,442.90/x
  3. Step 3: Cross multiply
    15,408.55x = 21,267.93 × 9,442.90
  4. Step 4: Simplify right side
    15,408.55x = 200,830,936.20
  5. Step 5: Solve for x
    x = 200,830,936.20/15,408.55
  6. Step 6: Final answer
    x = 13,033.73

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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.