Home / 15,482.16-21,365.18-8,408.63

Finding the Fourth Proportional to 15,482.16, 21,365.18 and 8,408.63

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Solution

The fourth proportional to 15,482.16, 21,365.18 and 8,408.63 is: 11,603.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,482.16 : 21,365.18 = 8,408.63 : x
  2. Step 2: Convert to fraction form
    15,482.16/21,365.18 = 8,408.63/x
  3. Step 3: Cross multiply
    15,482.16x = 21,365.18 × 8,408.63
  4. Step 4: Simplify right side
    15,482.16x = 179,651,744.63
  5. Step 5: Solve for x
    x = 179,651,744.63/15,482.16
  6. Step 6: Final answer
    x = 11,603.79

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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.