Home / 15,866.74-21,904.96-10,838.50

Finding the Fourth Proportional to 15,866.74, 21,904.96 and 10,838.50

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Solution

The fourth proportional to 15,866.74, 21,904.96 and 10,838.50 is: 14,963.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,866.74 : 21,904.96 = 10,838.50 : x
  2. Step 2: Convert to fraction form
    15,866.74/21,904.96 = 10,838.50/x
  3. Step 3: Cross multiply
    15,866.74x = 21,904.96 × 10,838.50
  4. Step 4: Simplify right side
    15,866.74x = 237,416,908.96
  5. Step 5: Solve for x
    x = 237,416,908.96/15,866.74
  6. Step 6: Final answer
    x = 14,963.18

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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.