Home / 9,939.75-13,702.40-6,946.29

Finding the Fourth Proportional to 9,939.75, 13,702.40 and 6,946.29

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Solution

The fourth proportional to 9,939.75, 13,702.40 and 6,946.29 is: 9,575.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,939.75 : 13,702.40 = 6,946.29 : x
  2. Step 2: Convert to fraction form
    9,939.75/13,702.40 = 6,946.29/x
  3. Step 3: Cross multiply
    9,939.75x = 13,702.40 × 6,946.29
  4. Step 4: Simplify right side
    9,939.75x = 95,180,809.36
  5. Step 5: Solve for x
    x = 95,180,809.36/9,939.75
  6. Step 6: Final answer
    x = 9,575.77

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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.