Home / 6,399.03-8,827.53-5,513.30

Finding the Fourth Proportional to 6,399.03, 8,827.53 and 5,513.30

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Solution

The fourth proportional to 6,399.03, 8,827.53 and 5,513.30 is: 7,605.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,399.03 : 8,827.53 = 5,513.30 : x
  2. Step 2: Convert to fraction form
    6,399.03/8,827.53 = 5,513.30/x
  3. Step 3: Cross multiply
    6,399.03x = 8,827.53 × 5,513.30
  4. Step 4: Simplify right side
    6,399.03x = 48,668,777.01
  5. Step 5: Solve for x
    x = 48,668,777.01/6,399.03
  6. Step 6: Final answer
    x = 7,605.65

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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.