Home / 7,477.18-10,318.32-4,119.91

Finding the Fourth Proportional to 7,477.18, 10,318.32 and 4,119.91

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Solution

The fourth proportional to 7,477.18, 10,318.32 and 4,119.91 is: 5,685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.18 : 10,318.32 = 4,119.91 : x
  2. Step 2: Convert to fraction form
    7,477.18/10,318.32 = 4,119.91/x
  3. Step 3: Cross multiply
    7,477.18x = 10,318.32 × 4,119.91
  4. Step 4: Simplify right side
    7,477.18x = 42,510,549.75
  5. Step 5: Solve for x
    x = 42,510,549.75/7,477.18
  6. Step 6: Final answer
    x = 5,685.37

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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.