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Finding the Fourth Proportional to 8,798.63, 12,142.10 and 5,072.63

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Solution

The fourth proportional to 8,798.63, 12,142.10 and 5,072.63 is: 7,000.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.63 : 12,142.10 = 5,072.63 : x
  2. Step 2: Convert to fraction form
    8,798.63/12,142.10 = 5,072.63/x
  3. Step 3: Cross multiply
    8,798.63x = 12,142.10 × 5,072.63
  4. Step 4: Simplify right side
    8,798.63x = 61,592,332.69
  5. Step 5: Solve for x
    x = 61,592,332.69/8,798.63
  6. Step 6: Final answer
    x = 7,000.22

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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.