Home / 7,977.39-11,008.01-4,621.29

Finding the Fourth Proportional to 7,977.39, 11,008.01 and 4,621.29

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Solution

The fourth proportional to 7,977.39, 11,008.01 and 4,621.29 is: 6,376.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.39 : 11,008.01 = 4,621.29 : x
  2. Step 2: Convert to fraction form
    7,977.39/11,008.01 = 4,621.29/x
  3. Step 3: Cross multiply
    7,977.39x = 11,008.01 × 4,621.29
  4. Step 4: Simplify right side
    7,977.39x = 50,871,150.81
  5. Step 5: Solve for x
    x = 50,871,150.81/7,977.39
  6. Step 6: Final answer
    x = 6,376.92

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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.