Home / 12,961.98-17,888.19-7,296.45

Finding the Fourth Proportional to 12,961.98, 17,888.19 and 7,296.45

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Solution

The fourth proportional to 12,961.98, 17,888.19 and 7,296.45 is: 10,069.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.98 : 17,888.19 = 7,296.45 : x
  2. Step 2: Convert to fraction form
    12,961.98/17,888.19 = 7,296.45/x
  3. Step 3: Cross multiply
    12,961.98x = 17,888.19 × 7,296.45
  4. Step 4: Simplify right side
    12,961.98x = 130,520,283.93
  5. Step 5: Solve for x
    x = 130,520,283.93/12,961.98
  6. Step 6: Final answer
    x = 10,069.47

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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.