Home / 7,965.44-10,991.95-5,312.49

Finding the Fourth Proportional to 7,965.44, 10,991.95 and 5,312.49

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Solution

The fourth proportional to 7,965.44, 10,991.95 and 5,312.49 is: 7,331.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.44 : 10,991.95 = 5,312.49 : x
  2. Step 2: Convert to fraction form
    7,965.44/10,991.95 = 5,312.49/x
  3. Step 3: Cross multiply
    7,965.44x = 10,991.95 × 5,312.49
  4. Step 4: Simplify right side
    7,965.44x = 58,394,599.84
  5. Step 5: Solve for x
    x = 58,394,599.84/7,965.44
  6. Step 6: Final answer
    x = 7,331.00

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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.