Home / 15,482.12-21,365.52-8,408.66

Finding the Fourth Proportional to 15,482.12, 21,365.52 and 8,408.66

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Solution

The fourth proportional to 15,482.12, 21,365.52 and 8,408.66 is: 11,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.12 : 21,365.52 = 8,408.66 : x
  2. Step 2: Convert to fraction form
    15,482.12/21,365.52 = 8,408.66/x
  3. Step 3: Cross multiply
    15,482.12x = 21,365.52 × 8,408.66
  4. Step 4: Simplify right side
    15,482.12x = 179,655,393.40
  5. Step 5: Solve for x
    x = 179,655,393.40/15,482.12
  6. Step 6: Final answer
    x = 11,604.06

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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.