Home / 9,985.12-14,977.52-3,829.12

Finding the Fourth Proportional to 9,985.12, 14,977.52 and 3,829.12

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Solution

The fourth proportional to 9,985.12, 14,977.52 and 3,829.12 is: 5,743.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.12 : 14,977.52 = 3,829.12 : x
  2. Step 2: Convert to fraction form
    9,985.12/14,977.52 = 3,829.12/x
  3. Step 3: Cross multiply
    9,985.12x = 14,977.52 × 3,829.12
  4. Step 4: Simplify right side
    9,985.12x = 57,350,721.38
  5. Step 5: Solve for x
    x = 57,350,721.38/9,985.12
  6. Step 6: Final answer
    x = 5,743.62

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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.