Home / 7,643.52-10,550.30-4,991.33

Finding the Fourth Proportional to 7,643.52, 10,550.30 and 4,991.33

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Solution

The fourth proportional to 7,643.52, 10,550.30 and 4,991.33 is: 6,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.52 : 10,550.30 = 4,991.33 : x
  2. Step 2: Convert to fraction form
    7,643.52/10,550.30 = 4,991.33/x
  3. Step 3: Cross multiply
    7,643.52x = 10,550.30 × 4,991.33
  4. Step 4: Simplify right side
    7,643.52x = 52,660,030.32
  5. Step 5: Solve for x
    x = 52,660,030.32/7,643.52
  6. Step 6: Final answer
    x = 6,889.50

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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.