Home / 15,454.84-21,327.54-8,741.78

Finding the Fourth Proportional to 15,454.84, 21,327.54 and 8,741.78

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Solution

The fourth proportional to 15,454.84, 21,327.54 and 8,741.78 is: 12,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,454.84 : 21,327.54 = 8,741.78 : x
  2. Step 2: Convert to fraction form
    15,454.84/21,327.54 = 8,741.78/x
  3. Step 3: Cross multiply
    15,454.84x = 21,327.54 × 8,741.78
  4. Step 4: Simplify right side
    15,454.84x = 186,440,603.18
  5. Step 5: Solve for x
    x = 186,440,603.18/15,454.84
  6. Step 6: Final answer
    x = 12,063.57

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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.