Home / 21,264.94-29,345.13-11,574.10

Finding the Fourth Proportional to 21,264.94, 29,345.13 and 11,574.10

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Solution

The fourth proportional to 21,264.94, 29,345.13 and 11,574.10 is: 15,971.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.94 : 29,345.13 = 11,574.10 : x
  2. Step 2: Convert to fraction form
    21,264.94/29,345.13 = 11,574.10/x
  3. Step 3: Cross multiply
    21,264.94x = 29,345.13 × 11,574.10
  4. Step 4: Simplify right side
    21,264.94x = 339,643,469.13
  5. Step 5: Solve for x
    x = 339,643,469.13/21,264.94
  6. Step 6: Final answer
    x = 15,971.99

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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.