Home / 12,363.16-17,063.40-7,888.30

Finding the Fourth Proportional to 12,363.16, 17,063.40 and 7,888.30

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Solution

The fourth proportional to 12,363.16, 17,063.40 and 7,888.30 is: 10,887.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,363.16 : 17,063.40 = 7,888.30 : x
  2. Step 2: Convert to fraction form
    12,363.16/17,063.40 = 7,888.30/x
  3. Step 3: Cross multiply
    12,363.16x = 17,063.40 × 7,888.30
  4. Step 4: Simplify right side
    12,363.16x = 134,601,218.22
  5. Step 5: Solve for x
    x = 134,601,218.22/12,363.16
  6. Step 6: Final answer
    x = 10,887.28

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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.