Home / 9,869.84-13,616.48-5,675.84

Finding the Fourth Proportional to 9,869.84, 13,616.48 and 5,675.84

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Solution

The fourth proportional to 9,869.84, 13,616.48 and 5,675.84 is: 7,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.84 : 13,616.48 = 5,675.84 : x
  2. Step 2: Convert to fraction form
    9,869.84/13,616.48 = 5,675.84/x
  3. Step 3: Cross multiply
    9,869.84x = 13,616.48 × 5,675.84
  4. Step 4: Simplify right side
    9,869.84x = 77,284,961.84
  5. Step 5: Solve for x
    x = 77,284,961.84/9,869.84
  6. Step 6: Final answer
    x = 7,830.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.