Home / 9,860.51-13,599.82-5,880.78

Finding the Fourth Proportional to 9,860.51, 13,599.82 and 5,880.78

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Solution

The fourth proportional to 9,860.51, 13,599.82 and 5,880.78 is: 8,110.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.51 : 13,599.82 = 5,880.78 : x
  2. Step 2: Convert to fraction form
    9,860.51/13,599.82 = 5,880.78/x
  3. Step 3: Cross multiply
    9,860.51x = 13,599.82 × 5,880.78
  4. Step 4: Simplify right side
    9,860.51x = 79,977,549.46
  5. Step 5: Solve for x
    x = 79,977,549.46/9,860.51
  6. Step 6: Final answer
    x = 8,110.89

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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.