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Finding the Fourth Proportional to 6,307.12, 8,640.80 and 6,070.65

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Solution

The fourth proportional to 6,307.12, 8,640.80 and 6,070.65 is: 8,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.12 : 8,640.80 = 6,070.65 : x
  2. Step 2: Convert to fraction form
    6,307.12/8,640.80 = 6,070.65/x
  3. Step 3: Cross multiply
    6,307.12x = 8,640.80 × 6,070.65
  4. Step 4: Simplify right side
    6,307.12x = 52,455,272.52
  5. Step 5: Solve for x
    x = 52,455,272.52/6,307.12
  6. Step 6: Final answer
    x = 8,316.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.