Home / 7,993.84-11,985.57-3,312.58

Finding the Fourth Proportional to 7,993.84, 11,985.57 and 3,312.58

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Solution

The fourth proportional to 7,993.84, 11,985.57 and 3,312.58 is: 4,966.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993.84 : 11,985.57 = 3,312.58 : x
  2. Step 2: Convert to fraction form
    7,993.84/11,985.57 = 3,312.58/x
  3. Step 3: Cross multiply
    7,993.84x = 11,985.57 × 3,312.58
  4. Step 4: Simplify right side
    7,993.84x = 39,703,159.47
  5. Step 5: Solve for x
    x = 39,703,159.47/7,993.84
  6. Step 6: Final answer
    x = 4,966.72

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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.