Home / 9,412.08-12,986.28-5,635.68

Finding the Fourth Proportional to 9,412.08, 12,986.28 and 5,635.68

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Solution

The fourth proportional to 9,412.08, 12,986.28 and 5,635.68 is: 7,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.08 : 12,986.28 = 5,635.68 : x
  2. Step 2: Convert to fraction form
    9,412.08/12,986.28 = 5,635.68/x
  3. Step 3: Cross multiply
    9,412.08x = 12,986.28 × 5,635.68
  4. Step 4: Simplify right side
    9,412.08x = 73,186,518.47
  5. Step 5: Solve for x
    x = 73,186,518.47/9,412.08
  6. Step 6: Final answer
    x = 7,775.81

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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.