Home / 14,787.23-20,405.48-8,071.52

Finding the Fourth Proportional to 14,787.23, 20,405.48 and 8,071.52

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Solution

The fourth proportional to 14,787.23, 20,405.48 and 8,071.52 is: 11,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.23 : 20,405.48 = 8,071.52 : x
  2. Step 2: Convert to fraction form
    14,787.23/20,405.48 = 8,071.52/x
  3. Step 3: Cross multiply
    14,787.23x = 20,405.48 × 8,071.52
  4. Step 4: Simplify right side
    14,787.23x = 164,703,097.54
  5. Step 5: Solve for x
    x = 164,703,097.54/14,787.23
  6. Step 6: Final answer
    x = 11,138.20

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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.