Home / 15,746.50-21,725.86-10,961.07

Finding the Fourth Proportional to 15,746.50, 21,725.86 and 10,961.07

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Solution

The fourth proportional to 15,746.50, 21,725.86 and 10,961.07 is: 15,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,746.50 : 21,725.86 = 10,961.07 : x
  2. Step 2: Convert to fraction form
    15,746.50/21,725.86 = 10,961.07/x
  3. Step 3: Cross multiply
    15,746.50x = 21,725.86 × 10,961.07
  4. Step 4: Simplify right side
    15,746.50x = 238,138,672.27
  5. Step 5: Solve for x
    x = 238,138,672.27/15,746.50
  6. Step 6: Final answer
    x = 15,123.28

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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.