Home / 12,515.40-17,278.44-9,346.17

Finding the Fourth Proportional to 12,515.40, 17,278.44 and 9,346.17

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Solution

The fourth proportional to 12,515.40, 17,278.44 and 9,346.17 is: 12,903.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.40 : 17,278.44 = 9,346.17 : x
  2. Step 2: Convert to fraction form
    12,515.40/17,278.44 = 9,346.17/x
  3. Step 3: Cross multiply
    12,515.40x = 17,278.44 × 9,346.17
  4. Step 4: Simplify right side
    12,515.40x = 161,487,237.57
  5. Step 5: Solve for x
    x = 161,487,237.57/12,515.40
  6. Step 6: Final answer
    x = 12,903.08

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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.