Home / 14,242.32-21,442.50-11,139.12

Finding the Fourth Proportional to 14,242.32, 21,442.50 and 11,139.12

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Solution

The fourth proportional to 14,242.32, 21,442.50 and 11,139.12 is: 16,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,242.32 : 21,442.50 = 11,139.12 : x
  2. Step 2: Convert to fraction form
    14,242.32/21,442.50 = 11,139.12/x
  3. Step 3: Cross multiply
    14,242.32x = 21,442.50 × 11,139.12
  4. Step 4: Simplify right side
    14,242.32x = 238,850,580.60
  5. Step 5: Solve for x
    x = 238,850,580.60/14,242.32
  6. Step 6: Final answer
    x = 16,770.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.