Home / 14,815.32-20,445.66-9,783.96

Finding the Fourth Proportional to 14,815.32, 20,445.66 and 9,783.96

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Solution

The fourth proportional to 14,815.32, 20,445.66 and 9,783.96 is: 13,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,815.32 : 20,445.66 = 9,783.96 : x
  2. Step 2: Convert to fraction form
    14,815.32/20,445.66 = 9,783.96/x
  3. Step 3: Cross multiply
    14,815.32x = 20,445.66 × 9,783.96
  4. Step 4: Simplify right side
    14,815.32x = 200,039,519.61
  5. Step 5: Solve for x
    x = 200,039,519.61/14,815.32
  6. Step 6: Final answer
    x = 13,502.21

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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.