Home / 9,509.12-13,126.98-6,785.75

Finding the Fourth Proportional to 9,509.12, 13,126.98 and 6,785.75

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Solution

The fourth proportional to 9,509.12, 13,126.98 and 6,785.75 is: 9,367.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.12 : 13,126.98 = 6,785.75 : x
  2. Step 2: Convert to fraction form
    9,509.12/13,126.98 = 6,785.75/x
  3. Step 3: Cross multiply
    9,509.12x = 13,126.98 × 6,785.75
  4. Step 4: Simplify right side
    9,509.12x = 89,076,462.80
  5. Step 5: Solve for x
    x = 89,076,462.80/9,509.12
  6. Step 6: Final answer
    x = 9,367.48

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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.