Home / 12,961.39-17,888.45-7,297.24

Finding the Fourth Proportional to 12,961.39, 17,888.45 and 7,297.24

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Solution

The fourth proportional to 12,961.39, 17,888.45 and 7,297.24 is: 10,071.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.39 : 17,888.45 = 7,297.24 : x
  2. Step 2: Convert to fraction form
    12,961.39/17,888.45 = 7,297.24/x
  3. Step 3: Cross multiply
    12,961.39x = 17,888.45 × 7,297.24
  4. Step 4: Simplify right side
    12,961.39x = 130,536,312.88
  5. Step 5: Solve for x
    x = 130,536,312.88/12,961.39
  6. Step 6: Final answer
    x = 10,071.17

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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.