Home / 15,293.27-21,082.38-10,809.11

Finding the Fourth Proportional to 15,293.27, 21,082.38 and 10,809.11

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Solution

The fourth proportional to 15,293.27, 21,082.38 and 10,809.11 is: 14,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.27 : 21,082.38 = 10,809.11 : x
  2. Step 2: Convert to fraction form
    15,293.27/21,082.38 = 10,809.11/x
  3. Step 3: Cross multiply
    15,293.27x = 21,082.38 × 10,809.11
  4. Step 4: Simplify right side
    15,293.27x = 227,881,776.65
  5. Step 5: Solve for x
    x = 227,881,776.65/15,293.27
  6. Step 6: Final answer
    x = 14,900.79

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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.