Home / 15,278.40-21,044.75-10,794.36

Finding the Fourth Proportional to 15,278.40, 21,044.75 and 10,794.36

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Solution

The fourth proportional to 15,278.40, 21,044.75 and 10,794.36 is: 14,868.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.40 : 21,044.75 = 10,794.36 : x
  2. Step 2: Convert to fraction form
    15,278.40/21,044.75 = 10,794.36/x
  3. Step 3: Cross multiply
    15,278.40x = 21,044.75 × 10,794.36
  4. Step 4: Simplify right side
    15,278.40x = 227,164,553.64
  5. Step 5: Solve for x
    x = 227,164,553.64/15,278.40
  6. Step 6: Final answer
    x = 14,868.35

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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.