Home / 11,528.71-15,909.81-6,812.98

Finding the Fourth Proportional to 11,528.71, 15,909.81 and 6,812.98

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Solution

The fourth proportional to 11,528.71, 15,909.81 and 6,812.98 is: 9,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.71 : 15,909.81 = 6,812.98 : x
  2. Step 2: Convert to fraction form
    11,528.71/15,909.81 = 6,812.98/x
  3. Step 3: Cross multiply
    11,528.71x = 15,909.81 × 6,812.98
  4. Step 4: Simplify right side
    11,528.71x = 108,393,217.33
  5. Step 5: Solve for x
    x = 108,393,217.33/11,528.71
  6. Step 6: Final answer
    x = 9,402.02

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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.