Home / 15,696.29-21,666.57-10,392.82

Finding the Fourth Proportional to 15,696.29, 21,666.57 and 10,392.82

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Solution

The fourth proportional to 15,696.29, 21,666.57 and 10,392.82 is: 14,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.29 : 21,666.57 = 10,392.82 : x
  2. Step 2: Convert to fraction form
    15,696.29/21,666.57 = 10,392.82/x
  3. Step 3: Cross multiply
    15,696.29x = 21,666.57 × 10,392.82
  4. Step 4: Simplify right side
    15,696.29x = 225,176,707.86
  5. Step 5: Solve for x
    x = 225,176,707.86/15,696.29
  6. Step 6: Final answer
    x = 14,345.85

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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.