Home / 7,140.03-9,852.48-3,995.61

Finding the Fourth Proportional to 7,140.03, 9,852.48 and 3,995.61

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Solution

The fourth proportional to 7,140.03, 9,852.48 and 3,995.61 is: 5,513.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.03 : 9,852.48 = 3,995.61 : x
  2. Step 2: Convert to fraction form
    7,140.03/9,852.48 = 3,995.61/x
  3. Step 3: Cross multiply
    7,140.03x = 9,852.48 × 3,995.61
  4. Step 4: Simplify right side
    7,140.03x = 39,366,667.61
  5. Step 5: Solve for x
    x = 39,366,667.61/7,140.03
  6. Step 6: Final answer
    x = 5,513.52

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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.