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Finding the Fourth Proportional to 6,888.56, 9,509.74 and 6,216.26

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Solution

The fourth proportional to 6,888.56, 9,509.74 and 6,216.26 is: 8,581.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.56 : 9,509.74 = 6,216.26 : x
  2. Step 2: Convert to fraction form
    6,888.56/9,509.74 = 6,216.26/x
  3. Step 3: Cross multiply
    6,888.56x = 9,509.74 × 6,216.26
  4. Step 4: Simplify right side
    6,888.56x = 59,114,953.28
  5. Step 5: Solve for x
    x = 59,114,953.28/6,888.56
  6. Step 6: Final answer
    x = 8,581.62

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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.