Home / 15,433.48-21,278.84-12,597.97

Finding the Fourth Proportional to 15,433.48, 21,278.84 and 12,597.97

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Solution

The fourth proportional to 15,433.48, 21,278.84 and 12,597.97 is: 17,369.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,433.48 : 21,278.84 = 12,597.97 : x
  2. Step 2: Convert to fraction form
    15,433.48/21,278.84 = 12,597.97/x
  3. Step 3: Cross multiply
    15,433.48x = 21,278.84 × 12,597.97
  4. Step 4: Simplify right side
    15,433.48x = 268,070,187.95
  5. Step 5: Solve for x
    x = 268,070,187.95/15,433.48
  6. Step 6: Final answer
    x = 17,369.40

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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.