Home / 8,928.14-13,325.74-7,736.86

Finding the Fourth Proportional to 8,928.14, 13,325.74 and 7,736.86

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Solution

The fourth proportional to 8,928.14, 13,325.74 and 7,736.86 is: 11,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,928.14 : 13,325.74 = 7,736.86 : x
  2. Step 2: Convert to fraction form
    8,928.14/13,325.74 = 7,736.86/x
  3. Step 3: Cross multiply
    8,928.14x = 13,325.74 × 7,736.86
  4. Step 4: Simplify right side
    8,928.14x = 103,099,384.78
  5. Step 5: Solve for x
    x = 103,099,384.78/8,928.14
  6. Step 6: Final answer
    x = 11,547.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.