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Finding the Fourth Proportional to 9,346.95, 12,862.31 and 9,289.44

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Solution

The fourth proportional to 9,346.95, 12,862.31 and 9,289.44 is: 12,783.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,346.95 : 12,862.31 = 9,289.44 : x
  2. Step 2: Convert to fraction form
    9,346.95/12,862.31 = 9,289.44/x
  3. Step 3: Cross multiply
    9,346.95x = 12,862.31 × 9,289.44
  4. Step 4: Simplify right side
    9,346.95x = 119,483,610.56
  5. Step 5: Solve for x
    x = 119,483,610.56/9,346.95
  6. Step 6: Final answer
    x = 12,783.17

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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.