Home / 13,266.84-19,860.78-8,577.76

Finding the Fourth Proportional to 13,266.84, 19,860.78 and 8,577.76

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Solution

The fourth proportional to 13,266.84, 19,860.78 and 8,577.76 is: 12,841.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.84 : 19,860.78 = 8,577.76 : x
  2. Step 2: Convert to fraction form
    13,266.84/19,860.78 = 8,577.76/x
  3. Step 3: Cross multiply
    13,266.84x = 19,860.78 × 8,577.76
  4. Step 4: Simplify right side
    13,266.84x = 170,361,004.25
  5. Step 5: Solve for x
    x = 170,361,004.25/13,266.84
  6. Step 6: Final answer
    x = 12,841.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.