Home / 21,278.16-29,363.34-11,846.52

Finding the Fourth Proportional to 21,278.16, 29,363.34 and 11,846.52

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Solution

The fourth proportional to 21,278.16, 29,363.34 and 11,846.52 is: 16,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,278.16 : 29,363.34 = 11,846.52 : x
  2. Step 2: Convert to fraction form
    21,278.16/29,363.34 = 11,846.52/x
  3. Step 3: Cross multiply
    21,278.16x = 29,363.34 × 11,846.52
  4. Step 4: Simplify right side
    21,278.16x = 347,853,394.58
  5. Step 5: Solve for x
    x = 347,853,394.58/21,278.16
  6. Step 6: Final answer
    x = 16,347.91

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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.