Home / 9,518.60-13,117.86-6,861.48

Finding the Fourth Proportional to 9,518.60, 13,117.86 and 6,861.48

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Solution

The fourth proportional to 9,518.60, 13,117.86 and 6,861.48 is: 9,456.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.60 : 13,117.86 = 6,861.48 : x
  2. Step 2: Convert to fraction form
    9,518.60/13,117.86 = 6,861.48/x
  3. Step 3: Cross multiply
    9,518.60x = 13,117.86 × 6,861.48
  4. Step 4: Simplify right side
    9,518.60x = 90,007,934.03
  5. Step 5: Solve for x
    x = 90,007,934.03/9,518.60
  6. Step 6: Final answer
    x = 9,456.01

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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.