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Finding the Fourth Proportional to 6,904.40, 9,504.72 and 6,239.16

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Solution

The fourth proportional to 6,904.40, 9,504.72 and 6,239.16 is: 8,588.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,904.40 : 9,504.72 = 6,239.16 : x
  2. Step 2: Convert to fraction form
    6,904.40/9,504.72 = 6,239.16/x
  3. Step 3: Cross multiply
    6,904.40x = 9,504.72 × 6,239.16
  4. Step 4: Simplify right side
    6,904.40x = 59,301,468.84
  5. Step 5: Solve for x
    x = 59,301,468.84/6,904.40
  6. Step 6: Final answer
    x = 8,588.94

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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.