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Finding the Fourth Proportional to 8,887.77, 13,339.73 and 4,731.28

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Solution

The fourth proportional to 8,887.77, 13,339.73 and 4,731.28 is: 7,101.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.77 : 13,339.73 = 4,731.28 : x
  2. Step 2: Convert to fraction form
    8,887.77/13,339.73 = 4,731.28/x
  3. Step 3: Cross multiply
    8,887.77x = 13,339.73 × 4,731.28
  4. Step 4: Simplify right side
    8,887.77x = 63,113,976.23
  5. Step 5: Solve for x
    x = 63,113,976.23/8,887.77
  6. Step 6: Final answer
    x = 7,101.22

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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.