Home / 12,618.95-17,412.57-7,313.04

Finding the Fourth Proportional to 12,618.95, 17,412.57 and 7,313.04

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Solution

The fourth proportional to 12,618.95, 17,412.57 and 7,313.04 is: 10,091.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.95 : 17,412.57 = 7,313.04 : x
  2. Step 2: Convert to fraction form
    12,618.95/17,412.57 = 7,313.04/x
  3. Step 3: Cross multiply
    12,618.95x = 17,412.57 × 7,313.04
  4. Step 4: Simplify right side
    12,618.95x = 127,338,820.91
  5. Step 5: Solve for x
    x = 127,338,820.91/12,618.95
  6. Step 6: Final answer
    x = 10,091.08

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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.