Home / 8,439.32-11,646.12-4,902.56

Finding the Fourth Proportional to 8,439.32, 11,646.12 and 4,902.56

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Solution

The fourth proportional to 8,439.32, 11,646.12 and 4,902.56 is: 6,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.32 : 11,646.12 = 4,902.56 : x
  2. Step 2: Convert to fraction form
    8,439.32/11,646.12 = 4,902.56/x
  3. Step 3: Cross multiply
    8,439.32x = 11,646.12 × 4,902.56
  4. Step 4: Simplify right side
    8,439.32x = 57,095,802.07
  5. Step 5: Solve for x
    x = 57,095,802.07/8,439.32
  6. Step 6: Final answer
    x = 6,765.45

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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.