Home / 12,441.60-18,688.32-9,862.56

Finding the Fourth Proportional to 12,441.60, 18,688.32 and 9,862.56

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Solution

The fourth proportional to 12,441.60, 18,688.32 and 9,862.56 is: 14,814.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.60 : 18,688.32 = 9,862.56 : x
  2. Step 2: Convert to fraction form
    12,441.60/18,688.32 = 9,862.56/x
  3. Step 3: Cross multiply
    12,441.60x = 18,688.32 × 9,862.56
  4. Step 4: Simplify right side
    12,441.60x = 184,314,677.30
  5. Step 5: Solve for x
    x = 184,314,677.30/12,441.60
  6. Step 6: Final answer
    x = 14,814.39

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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.