Home / 7,812.32-10,781.64-4,455.27

Finding the Fourth Proportional to 7,812.32, 10,781.64 and 4,455.27

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Solution

The fourth proportional to 7,812.32, 10,781.64 and 4,455.27 is: 6,148.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.32 : 10,781.64 = 4,455.27 : x
  2. Step 2: Convert to fraction form
    7,812.32/10,781.64 = 4,455.27/x
  3. Step 3: Cross multiply
    7,812.32x = 10,781.64 × 4,455.27
  4. Step 4: Simplify right side
    7,812.32x = 48,035,117.24
  5. Step 5: Solve for x
    x = 48,035,117.24/7,812.32
  6. Step 6: Final answer
    x = 6,148.64

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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.