Home / 9,012.24-12,439.13-5,477.81

Finding the Fourth Proportional to 9,012.24, 12,439.13 and 5,477.81

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Solution

The fourth proportional to 9,012.24, 12,439.13 and 5,477.81 is: 7,560.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.24 : 12,439.13 = 5,477.81 : x
  2. Step 2: Convert to fraction form
    9,012.24/12,439.13 = 5,477.81/x
  3. Step 3: Cross multiply
    9,012.24x = 12,439.13 × 5,477.81
  4. Step 4: Simplify right side
    9,012.24x = 68,139,101.12
  5. Step 5: Solve for x
    x = 68,139,101.12/9,012.24
  6. Step 6: Final answer
    x = 7,560.73

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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.