Home / 13,725.32-20,587.76-4,365.20

Finding the Fourth Proportional to 13,725.32, 20,587.76 and 4,365.20

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Solution

The fourth proportional to 13,725.32, 20,587.76 and 4,365.20 is: 6,547.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.32 : 20,587.76 = 4,365.20 : x
  2. Step 2: Convert to fraction form
    13,725.32/20,587.76 = 4,365.20/x
  3. Step 3: Cross multiply
    13,725.32x = 20,587.76 × 4,365.20
  4. Step 4: Simplify right side
    13,725.32x = 89,869,653.30
  5. Step 5: Solve for x
    x = 89,869,653.30/13,725.32
  6. Step 6: Final answer
    x = 6,547.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.