Home / 8,938.35-12,330.36-5,583.72

Finding the Fourth Proportional to 8,938.35, 12,330.36 and 5,583.72

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Solution

The fourth proportional to 8,938.35, 12,330.36 and 5,583.72 is: 7,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.35 : 12,330.36 = 5,583.72 : x
  2. Step 2: Convert to fraction form
    8,938.35/12,330.36 = 5,583.72/x
  3. Step 3: Cross multiply
    8,938.35x = 12,330.36 × 5,583.72
  4. Step 4: Simplify right side
    8,938.35x = 68,849,277.74
  5. Step 5: Solve for x
    x = 68,849,277.74/8,938.35
  6. Step 6: Final answer
    x = 7,702.68

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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.