Home / 10,965.55-15,131.89-6,185.35

Finding the Fourth Proportional to 10,965.55, 15,131.89 and 6,185.35

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Solution

The fourth proportional to 10,965.55, 15,131.89 and 6,185.35 is: 8,535.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.55 : 15,131.89 = 6,185.35 : x
  2. Step 2: Convert to fraction form
    10,965.55/15,131.89 = 6,185.35/x
  3. Step 3: Cross multiply
    10,965.55x = 15,131.89 × 6,185.35
  4. Step 4: Simplify right side
    10,965.55x = 93,596,035.81
  5. Step 5: Solve for x
    x = 93,596,035.81/10,965.55
  6. Step 6: Final answer
    x = 8,535.46

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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.