Home / 9,817.30-13,543.56-6,455.80

Finding the Fourth Proportional to 9,817.30, 13,543.56 and 6,455.80

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Solution

The fourth proportional to 9,817.30, 13,543.56 and 6,455.80 is: 8,906.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,817.30 : 13,543.56 = 6,455.80 : x
  2. Step 2: Convert to fraction form
    9,817.30/13,543.56 = 6,455.80/x
  3. Step 3: Cross multiply
    9,817.30x = 13,543.56 × 6,455.80
  4. Step 4: Simplify right side
    9,817.30x = 87,434,514.65
  5. Step 5: Solve for x
    x = 87,434,514.65/9,817.30
  6. Step 6: Final answer
    x = 8,906.17

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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.