Home / 9,390.24-12,959.10-5,412.06

Finding the Fourth Proportional to 9,390.24, 12,959.10 and 5,412.06

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Solution

The fourth proportional to 9,390.24, 12,959.10 and 5,412.06 is: 7,468.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.24 : 12,959.10 = 5,412.06 : x
  2. Step 2: Convert to fraction form
    9,390.24/12,959.10 = 5,412.06/x
  3. Step 3: Cross multiply
    9,390.24x = 12,959.10 × 5,412.06
  4. Step 4: Simplify right side
    9,390.24x = 70,135,426.75
  5. Step 5: Solve for x
    x = 70,135,426.75/9,390.24
  6. Step 6: Final answer
    x = 7,468.97

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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.