Home / 6,976.07-9,619.12-5,379.10

Finding the Fourth Proportional to 6,976.07, 9,619.12 and 5,379.10

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Solution

The fourth proportional to 6,976.07, 9,619.12 and 5,379.10 is: 7,417.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,976.07 : 9,619.12 = 5,379.10 : x
  2. Step 2: Convert to fraction form
    6,976.07/9,619.12 = 5,379.10/x
  3. Step 3: Cross multiply
    6,976.07x = 9,619.12 × 5,379.10
  4. Step 4: Simplify right side
    6,976.07x = 51,742,191.07
  5. Step 5: Solve for x
    x = 51,742,191.07/6,976.07
  6. Step 6: Final answer
    x = 7,417.10

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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.