Home / 10,485.12-15,727.80-3,560.16

Finding the Fourth Proportional to 10,485.12, 15,727.80 and 3,560.16

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Solution

The fourth proportional to 10,485.12, 15,727.80 and 3,560.16 is: 5,340.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.12 : 15,727.80 = 3,560.16 : x
  2. Step 2: Convert to fraction form
    10,485.12/15,727.80 = 3,560.16/x
  3. Step 3: Cross multiply
    10,485.12x = 15,727.80 × 3,560.16
  4. Step 4: Simplify right side
    10,485.12x = 55,993,484.45
  5. Step 5: Solve for x
    x = 55,993,484.45/10,485.12
  6. Step 6: Final answer
    x = 5,340.28

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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.