Home / 7,875.64-10,867.96-4,338.16

Finding the Fourth Proportional to 7,875.64, 10,867.96 and 4,338.16

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Solution

The fourth proportional to 7,875.64, 10,867.96 and 4,338.16 is: 5,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.64 : 10,867.96 = 4,338.16 : x
  2. Step 2: Convert to fraction form
    7,875.64/10,867.96 = 4,338.16/x
  3. Step 3: Cross multiply
    7,875.64x = 10,867.96 × 4,338.16
  4. Step 4: Simplify right side
    7,875.64x = 47,146,949.35
  5. Step 5: Solve for x
    x = 47,146,949.35/7,875.64
  6. Step 6: Final answer
    x = 5,986.43

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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.