Home / 13,547.28-20,320.92-5,750.64

Finding the Fourth Proportional to 13,547.28, 20,320.92 and 5,750.64

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Solution

The fourth proportional to 13,547.28, 20,320.92 and 5,750.64 is: 8,625.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.28 : 20,320.92 = 5,750.64 : x
  2. Step 2: Convert to fraction form
    13,547.28/20,320.92 = 5,750.64/x
  3. Step 3: Cross multiply
    13,547.28x = 20,320.92 × 5,750.64
  4. Step 4: Simplify right side
    13,547.28x = 116,858,295.39
  5. Step 5: Solve for x
    x = 116,858,295.39/13,547.28
  6. Step 6: Final answer
    x = 8,625.96

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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.