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Finding the Fourth Proportional to 8,501.78, 11,703.34 and 7,376.10

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Solution

The fourth proportional to 8,501.78, 11,703.34 and 7,376.10 is: 10,153.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.78 : 11,703.34 = 7,376.10 : x
  2. Step 2: Convert to fraction form
    8,501.78/11,703.34 = 7,376.10/x
  3. Step 3: Cross multiply
    8,501.78x = 11,703.34 × 7,376.10
  4. Step 4: Simplify right side
    8,501.78x = 86,325,006.17
  5. Step 5: Solve for x
    x = 86,325,006.17/8,501.78
  6. Step 6: Final answer
    x = 10,153.76

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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.