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Finding the Fourth Proportional to 8,670.02, 11,963.85 and 5,312.16

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Solution

The fourth proportional to 8,670.02, 11,963.85 and 5,312.16 is: 7,330.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.02 : 11,963.85 = 5,312.16 : x
  2. Step 2: Convert to fraction form
    8,670.02/11,963.85 = 5,312.16/x
  3. Step 3: Cross multiply
    8,670.02x = 11,963.85 × 5,312.16
  4. Step 4: Simplify right side
    8,670.02x = 63,553,885.42
  5. Step 5: Solve for x
    x = 63,553,885.42/8,670.02
  6. Step 6: Final answer
    x = 7,330.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.