Home / 10,485.16-15,727.75-4,240.89

Finding the Fourth Proportional to 10,485.16, 15,727.75 and 4,240.89

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Solution

The fourth proportional to 10,485.16, 15,727.75 and 4,240.89 is: 6,361.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.16 : 15,727.75 = 4,240.89 : x
  2. Step 2: Convert to fraction form
    10,485.16/15,727.75 = 4,240.89/x
  3. Step 3: Cross multiply
    10,485.16x = 15,727.75 × 4,240.89
  4. Step 4: Simplify right side
    10,485.16x = 66,699,657.70
  5. Step 5: Solve for x
    x = 66,699,657.70/10,485.16
  6. Step 6: Final answer
    x = 6,361.34

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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.