Home / 12,961.40-17,887.07-7,296.36

Finding the Fourth Proportional to 12,961.40, 17,887.07 and 7,296.36

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Solution

The fourth proportional to 12,961.40, 17,887.07 and 7,296.36 is: 10,069.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.40 : 17,887.07 = 7,296.36 : x
  2. Step 2: Convert to fraction form
    12,961.40/17,887.07 = 7,296.36/x
  3. Step 3: Cross multiply
    12,961.40x = 17,887.07 × 7,296.36
  4. Step 4: Simplify right side
    12,961.40x = 130,510,412.63
  5. Step 5: Solve for x
    x = 130,510,412.63/12,961.40
  6. Step 6: Final answer
    x = 10,069.16

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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.