Home / 10,485.55-15,734.40-5,291.83

Finding the Fourth Proportional to 10,485.55, 15,734.40 and 5,291.83

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Solution

The fourth proportional to 10,485.55, 15,734.40 and 5,291.83 is: 7,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.55 : 15,734.40 = 5,291.83 : x
  2. Step 2: Convert to fraction form
    10,485.55/15,734.40 = 5,291.83/x
  3. Step 3: Cross multiply
    10,485.55x = 15,734.40 × 5,291.83
  4. Step 4: Simplify right side
    10,485.55x = 83,263,769.95
  5. Step 5: Solve for x
    x = 83,263,769.95/10,485.55
  6. Step 6: Final answer
    x = 7,940.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.