Home / 15,787.56-21,764.76-10,480.44

Finding the Fourth Proportional to 15,787.56, 21,764.76 and 10,480.44

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Solution

The fourth proportional to 15,787.56, 21,764.76 and 10,480.44 is: 14,448.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,787.56 : 21,764.76 = 10,480.44 : x
  2. Step 2: Convert to fraction form
    15,787.56/21,764.76 = 10,480.44/x
  3. Step 3: Cross multiply
    15,787.56x = 21,764.76 × 10,480.44
  4. Step 4: Simplify right side
    15,787.56x = 228,104,261.29
  5. Step 5: Solve for x
    x = 228,104,261.29/15,787.56
  6. Step 6: Final answer
    x = 14,448.35

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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.