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Finding the Fourth Proportional to 8,304.79, 12,459.24 and 6,840.87

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Solution

The fourth proportional to 8,304.79, 12,459.24 and 6,840.87 is: 10,263.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,304.79 : 12,459.24 = 6,840.87 : x
  2. Step 2: Convert to fraction form
    8,304.79/12,459.24 = 6,840.87/x
  3. Step 3: Cross multiply
    8,304.79x = 12,459.24 × 6,840.87
  4. Step 4: Simplify right side
    8,304.79x = 85,232,041.14
  5. Step 5: Solve for x
    x = 85,232,041.14/8,304.79
  6. Step 6: Final answer
    x = 10,263.00

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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.