Home / 18,346.91-25,326.49-12,386.66

Finding the Fourth Proportional to 18,346.91, 25,326.49 and 12,386.66

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Solution

The fourth proportional to 18,346.91, 25,326.49 and 12,386.66 is: 17,098.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.91 : 25,326.49 = 12,386.66 : x
  2. Step 2: Convert to fraction form
    18,346.91/25,326.49 = 12,386.66/x
  3. Step 3: Cross multiply
    18,346.91x = 25,326.49 × 12,386.66
  4. Step 4: Simplify right side
    18,346.91x = 313,710,509.47
  5. Step 5: Solve for x
    x = 313,710,509.47/18,346.91
  6. Step 6: Final answer
    x = 17,098.82

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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.