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Finding the Fourth Proportional to 8,035.40, 12,038.52 and 7,860.44

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Solution

The fourth proportional to 8,035.40, 12,038.52 and 7,860.44 is: 11,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,035.40 : 12,038.52 = 7,860.44 : x
  2. Step 2: Convert to fraction form
    8,035.40/12,038.52 = 7,860.44/x
  3. Step 3: Cross multiply
    8,035.40x = 12,038.52 × 7,860.44
  4. Step 4: Simplify right side
    8,035.40x = 94,628,123.72
  5. Step 5: Solve for x
    x = 94,628,123.72/8,035.40
  6. Step 6: Final answer
    x = 11,776.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.