Home / 7,020.25-10,515.39-4,547.73

Finding the Fourth Proportional to 7,020.25, 10,515.39 and 4,547.73

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Solution

The fourth proportional to 7,020.25, 10,515.39 and 4,547.73 is: 6,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,020.25 : 10,515.39 = 4,547.73 : x
  2. Step 2: Convert to fraction form
    7,020.25/10,515.39 = 4,547.73/x
  3. Step 3: Cross multiply
    7,020.25x = 10,515.39 × 4,547.73
  4. Step 4: Simplify right side
    7,020.25x = 47,821,154.56
  5. Step 5: Solve for x
    x = 47,821,154.56/7,020.25
  6. Step 6: Final answer
    x = 6,811.89

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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.