Home / 13,541.23-18,677.59-11,519.47

Finding the Fourth Proportional to 13,541.23, 18,677.59 and 11,519.47

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Solution

The fourth proportional to 13,541.23, 18,677.59 and 11,519.47 is: 15,888.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.23 : 18,677.59 = 11,519.47 : x
  2. Step 2: Convert to fraction form
    13,541.23/18,677.59 = 11,519.47/x
  3. Step 3: Cross multiply
    13,541.23x = 18,677.59 × 11,519.47
  4. Step 4: Simplify right side
    13,541.23x = 215,155,937.68
  5. Step 5: Solve for x
    x = 215,155,937.68/13,541.23
  6. Step 6: Final answer
    x = 15,888.95

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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.