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Finding the Fourth Proportional to 10,054.71, 13,875.92 and 5,579.32

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Solution

The fourth proportional to 10,054.71, 13,875.92 and 5,579.32 is: 7,699.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,054.71 : 13,875.92 = 5,579.32 : x
  2. Step 2: Convert to fraction form
    10,054.71/13,875.92 = 5,579.32/x
  3. Step 3: Cross multiply
    10,054.71x = 13,875.92 × 5,579.32
  4. Step 4: Simplify right side
    10,054.71x = 77,418,197.97
  5. Step 5: Solve for x
    x = 77,418,197.97/10,054.71
  6. Step 6: Final answer
    x = 7,699.69

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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.