Home / 15,696.31-21,666.60-10,392.84

Finding the Fourth Proportional to 15,696.31, 21,666.60 and 10,392.84

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Solution

The fourth proportional to 15,696.31, 21,666.60 and 10,392.84 is: 14,345.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696.31 : 21,666.60 = 10,392.84 : x
  2. Step 2: Convert to fraction form
    15,696.31/21,666.60 = 10,392.84/x
  3. Step 3: Cross multiply
    15,696.31x = 21,666.60 × 10,392.84
  4. Step 4: Simplify right side
    15,696.31x = 225,177,386.51
  5. Step 5: Solve for x
    x = 225,177,386.51/15,696.31
  6. Step 6: Final answer
    x = 14,345.88

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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.