Home / 7,647.80-10,568.48-6,513.30

Finding the Fourth Proportional to 7,647.80, 10,568.48 and 6,513.30

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Solution

The fourth proportional to 7,647.80, 10,568.48 and 6,513.30 is: 9,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,647.80 : 10,568.48 = 6,513.30 : x
  2. Step 2: Convert to fraction form
    7,647.80/10,568.48 = 6,513.30/x
  3. Step 3: Cross multiply
    7,647.80x = 10,568.48 × 6,513.30
  4. Step 4: Simplify right side
    7,647.80x = 68,835,648.22
  5. Step 5: Solve for x
    x = 68,835,648.22/7,647.80
  6. Step 6: Final answer
    x = 9,000.72

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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.