Home / 7,983.87-11,007.98-4,994.51

Finding the Fourth Proportional to 7,983.87, 11,007.98 and 4,994.51

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Solution

The fourth proportional to 7,983.87, 11,007.98 and 4,994.51 is: 6,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.87 : 11,007.98 = 4,994.51 : x
  2. Step 2: Convert to fraction form
    7,983.87/11,007.98 = 4,994.51/x
  3. Step 3: Cross multiply
    7,983.87x = 11,007.98 × 4,994.51
  4. Step 4: Simplify right side
    7,983.87x = 54,979,386.18
  5. Step 5: Solve for x
    x = 54,979,386.18/7,983.87
  6. Step 6: Final answer
    x = 6,886.31

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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.