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Finding the Fourth Proportional to 7,875.04, 10,867.60 and 4,338.32

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Solution

The fourth proportional to 7,875.04, 10,867.60 and 4,338.32 is: 5,986.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.04 : 10,867.60 = 4,338.32 : x
  2. Step 2: Convert to fraction form
    7,875.04/10,867.60 = 4,338.32/x
  3. Step 3: Cross multiply
    7,875.04x = 10,867.60 × 4,338.32
  4. Step 4: Simplify right side
    7,875.04x = 47,147,126.43
  5. Step 5: Solve for x
    x = 47,147,126.43/7,875.04
  6. Step 6: Final answer
    x = 5,986.91

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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.