Home / 9,189.33-12,681.42-5,210.36

Finding the Fourth Proportional to 9,189.33, 12,681.42 and 5,210.36

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Solution

The fourth proportional to 9,189.33, 12,681.42 and 5,210.36 is: 7,190.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,189.33 : 12,681.42 = 5,210.36 : x
  2. Step 2: Convert to fraction form
    9,189.33/12,681.42 = 5,210.36/x
  3. Step 3: Cross multiply
    9,189.33x = 12,681.42 × 5,210.36
  4. Step 4: Simplify right side
    9,189.33x = 66,074,700.10
  5. Step 5: Solve for x
    x = 66,074,700.10/9,189.33
  6. Step 6: Final answer
    x = 7,190.37

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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.