Home / 15,256.92-21,055.26-8,541.21

Finding the Fourth Proportional to 15,256.92, 21,055.26 and 8,541.21

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Solution

The fourth proportional to 15,256.92, 21,055.26 and 8,541.21 is: 11,787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.92 : 21,055.26 = 8,541.21 : x
  2. Step 2: Convert to fraction form
    15,256.92/21,055.26 = 8,541.21/x
  3. Step 3: Cross multiply
    15,256.92x = 21,055.26 × 8,541.21
  4. Step 4: Simplify right side
    15,256.92x = 179,837,397.26
  5. Step 5: Solve for x
    x = 179,837,397.26/15,256.92
  6. Step 6: Final answer
    x = 11,787.27

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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.