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Finding the Fourth Proportional to 8,607.63, 12,903.24 and 3,670.47

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Solution

The fourth proportional to 8,607.63, 12,903.24 and 3,670.47 is: 5,502.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.63 : 12,903.24 = 3,670.47 : x
  2. Step 2: Convert to fraction form
    8,607.63/12,903.24 = 3,670.47/x
  3. Step 3: Cross multiply
    8,607.63x = 12,903.24 × 3,670.47
  4. Step 4: Simplify right side
    8,607.63x = 47,360,955.32
  5. Step 5: Solve for x
    x = 47,360,955.32/8,607.63
  6. Step 6: Final answer
    x = 5,502.21

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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.