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Finding the Fourth Proportional to 6,605.36, 9,888.83 and 5,140.07

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Solution

The fourth proportional to 6,605.36, 9,888.83 and 5,140.07 is: 7,695.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,605.36 : 9,888.83 = 5,140.07 : x
  2. Step 2: Convert to fraction form
    6,605.36/9,888.83 = 5,140.07/x
  3. Step 3: Cross multiply
    6,605.36x = 9,888.83 × 5,140.07
  4. Step 4: Simplify right side
    6,605.36x = 50,829,278.42
  5. Step 5: Solve for x
    x = 50,829,278.42/6,605.36
  6. Step 6: Final answer
    x = 7,695.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.