Home / 10,928.91-15,081.53-6,148.95

Finding the Fourth Proportional to 10,928.91, 15,081.53 and 6,148.95

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Solution

The fourth proportional to 10,928.91, 15,081.53 and 6,148.95 is: 8,485.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.91 : 15,081.53 = 6,148.95 : x
  2. Step 2: Convert to fraction form
    10,928.91/15,081.53 = 6,148.95/x
  3. Step 3: Cross multiply
    10,928.91x = 15,081.53 × 6,148.95
  4. Step 4: Simplify right side
    10,928.91x = 92,735,543.15
  5. Step 5: Solve for x
    x = 92,735,543.15/10,928.91
  6. Step 6: Final answer
    x = 8,485.34

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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.