Home / 12,528.61-17,289.45-6,863.69

Finding the Fourth Proportional to 12,528.61, 17,289.45 and 6,863.69

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Solution

The fourth proportional to 12,528.61, 17,289.45 and 6,863.69 is: 9,471.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.61 : 17,289.45 = 6,863.69 : x
  2. Step 2: Convert to fraction form
    12,528.61/17,289.45 = 6,863.69/x
  3. Step 3: Cross multiply
    12,528.61x = 17,289.45 × 6,863.69
  4. Step 4: Simplify right side
    12,528.61x = 118,669,468.29
  5. Step 5: Solve for x
    x = 118,669,468.29/12,528.61
  6. Step 6: Final answer
    x = 9,471.88

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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.