Home / 12,528.36-17,288.46-6,862.05

Finding the Fourth Proportional to 12,528.36, 17,288.46 and 6,862.05

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Solution

The fourth proportional to 12,528.36, 17,288.46 and 6,862.05 is: 9,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.36 : 17,288.46 = 6,862.05 : x
  2. Step 2: Convert to fraction form
    12,528.36/17,288.46 = 6,862.05/x
  3. Step 3: Cross multiply
    12,528.36x = 17,288.46 × 6,862.05
  4. Step 4: Simplify right side
    12,528.36x = 118,634,276.94
  5. Step 5: Solve for x
    x = 118,634,276.94/12,528.36
  6. Step 6: Final answer
    x = 9,469.26

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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.