Home / 9,919.32-13,688.16-5,942.64

Finding the Fourth Proportional to 9,919.32, 13,688.16 and 5,942.64

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Solution

The fourth proportional to 9,919.32, 13,688.16 and 5,942.64 is: 8,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.32 : 13,688.16 = 5,942.64 : x
  2. Step 2: Convert to fraction form
    9,919.32/13,688.16 = 5,942.64/x
  3. Step 3: Cross multiply
    9,919.32x = 13,688.16 × 5,942.64
  4. Step 4: Simplify right side
    9,919.32x = 81,343,807.14
  5. Step 5: Solve for x
    x = 81,343,807.14/9,919.32
  6. Step 6: Final answer
    x = 8,200.54

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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.