Home / 8,870.69-13,307.96-2,631.17

Finding the Fourth Proportional to 8,870.69, 13,307.96 and 2,631.17

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Solution

The fourth proportional to 8,870.69, 13,307.96 and 2,631.17 is: 3,947.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.69 : 13,307.96 = 2,631.17 : x
  2. Step 2: Convert to fraction form
    8,870.69/13,307.96 = 2,631.17/x
  3. Step 3: Cross multiply
    8,870.69x = 13,307.96 × 2,631.17
  4. Step 4: Simplify right side
    8,870.69x = 35,015,544.96
  5. Step 5: Solve for x
    x = 35,015,544.96/8,870.69
  6. Step 6: Final answer
    x = 3,947.33

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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.