Home / 13,208.74-18,227.02-7,618.66

Finding the Fourth Proportional to 13,208.74, 18,227.02 and 7,618.66

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Solution

The fourth proportional to 13,208.74, 18,227.02 and 7,618.66 is: 10,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.74 : 18,227.02 = 7,618.66 : x
  2. Step 2: Convert to fraction form
    13,208.74/18,227.02 = 7,618.66/x
  3. Step 3: Cross multiply
    13,208.74x = 18,227.02 × 7,618.66
  4. Step 4: Simplify right side
    13,208.74x = 138,865,468.19
  5. Step 5: Solve for x
    x = 138,865,468.19/13,208.74
  6. Step 6: Final answer
    x = 10,513.15

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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.