Home / 12,881.40-19,321.59-4,561.08

Finding the Fourth Proportional to 12,881.40, 19,321.59 and 4,561.08

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Solution

The fourth proportional to 12,881.40, 19,321.59 and 4,561.08 is: 6,841.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,881.40 : 19,321.59 = 4,561.08 : x
  2. Step 2: Convert to fraction form
    12,881.40/19,321.59 = 4,561.08/x
  3. Step 3: Cross multiply
    12,881.40x = 19,321.59 × 4,561.08
  4. Step 4: Simplify right side
    12,881.40x = 88,127,334.82
  5. Step 5: Solve for x
    x = 88,127,334.82/12,881.40
  6. Step 6: Final answer
    x = 6,841.44

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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.