Home / 8,931.52-12,323.64-5,394.06

Finding the Fourth Proportional to 8,931.52, 12,323.64 and 5,394.06

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Solution

The fourth proportional to 8,931.52, 12,323.64 and 5,394.06 is: 7,442.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.52 : 12,323.64 = 5,394.06 : x
  2. Step 2: Convert to fraction form
    8,931.52/12,323.64 = 5,394.06/x
  3. Step 3: Cross multiply
    8,931.52x = 12,323.64 × 5,394.06
  4. Step 4: Simplify right side
    8,931.52x = 66,474,453.58
  5. Step 5: Solve for x
    x = 66,474,453.58/8,931.52
  6. Step 6: Final answer
    x = 7,442.68

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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.