Home / 15,278.15-21,044.40-10,794.11

Finding the Fourth Proportional to 15,278.15, 21,044.40 and 10,794.11

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Solution

The fourth proportional to 15,278.15, 21,044.40 and 10,794.11 is: 14,868.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,278.15 : 21,044.40 = 10,794.11 : x
  2. Step 2: Convert to fraction form
    15,278.15/21,044.40 = 10,794.11/x
  3. Step 3: Cross multiply
    15,278.15x = 21,044.40 × 10,794.11
  4. Step 4: Simplify right side
    15,278.15x = 227,155,621.10
  5. Step 5: Solve for x
    x = 227,155,621.10/15,278.15
  6. Step 6: Final answer
    x = 14,868.01

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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.