Home / 7,140.12-9,858.06-4,350.36

Finding the Fourth Proportional to 7,140.12, 9,858.06 and 4,350.36

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Solution

The fourth proportional to 7,140.12, 9,858.06 and 4,350.36 is: 6,006.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.12 : 9,858.06 = 4,350.36 : x
  2. Step 2: Convert to fraction form
    7,140.12/9,858.06 = 4,350.36/x
  3. Step 3: Cross multiply
    7,140.12x = 9,858.06 × 4,350.36
  4. Step 4: Simplify right side
    7,140.12x = 42,886,109.90
  5. Step 5: Solve for x
    x = 42,886,109.90/7,140.12
  6. Step 6: Final answer
    x = 6,006.36

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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.