Home / 9,077.81-13,639.62-8,708.77

Finding the Fourth Proportional to 9,077.81, 13,639.62 and 8,708.77

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Solution

The fourth proportional to 9,077.81, 13,639.62 and 8,708.77 is: 13,085.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,077.81 : 13,639.62 = 8,708.77 : x
  2. Step 2: Convert to fraction form
    9,077.81/13,639.62 = 8,708.77/x
  3. Step 3: Cross multiply
    9,077.81x = 13,639.62 × 8,708.77
  4. Step 4: Simplify right side
    9,077.81x = 118,784,245.27
  5. Step 5: Solve for x
    x = 118,784,245.27/9,077.81
  6. Step 6: Final answer
    x = 13,085.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.