Home / 18,513.28-27,703.98-13,570.66

Finding the Fourth Proportional to 18,513.28, 27,703.98 and 13,570.66

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Solution

The fourth proportional to 18,513.28, 27,703.98 and 13,570.66 is: 20,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,513.28 : 27,703.98 = 13,570.66 : x
  2. Step 2: Convert to fraction form
    18,513.28/27,703.98 = 13,570.66/x
  3. Step 3: Cross multiply
    18,513.28x = 27,703.98 × 13,570.66
  4. Step 4: Simplify right side
    18,513.28x = 375,961,293.23
  5. Step 5: Solve for x
    x = 375,961,293.23/18,513.28
  6. Step 6: Final answer
    x = 20,307.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.