Home / 8,277.27-11,406.06-6,389.16

Finding the Fourth Proportional to 8,277.27, 11,406.06 and 6,389.16

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Solution

The fourth proportional to 8,277.27, 11,406.06 and 6,389.16 is: 8,804.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,277.27 : 11,406.06 = 6,389.16 : x
  2. Step 2: Convert to fraction form
    8,277.27/11,406.06 = 6,389.16/x
  3. Step 3: Cross multiply
    8,277.27x = 11,406.06 × 6,389.16
  4. Step 4: Simplify right side
    8,277.27x = 72,875,142.31
  5. Step 5: Solve for x
    x = 72,875,142.31/8,277.27
  6. Step 6: Final answer
    x = 8,804.25

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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.