Home / 15,374.27-21,212.58-9,403.76

Finding the Fourth Proportional to 15,374.27, 21,212.58 and 9,403.76

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Solution

The fourth proportional to 15,374.27, 21,212.58 and 9,403.76 is: 12,974.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,374.27 : 21,212.58 = 9,403.76 : x
  2. Step 2: Convert to fraction form
    15,374.27/21,212.58 = 9,403.76/x
  3. Step 3: Cross multiply
    15,374.27x = 21,212.58 × 9,403.76
  4. Step 4: Simplify right side
    15,374.27x = 199,478,099.60
  5. Step 5: Solve for x
    x = 199,478,099.60/15,374.27
  6. Step 6: Final answer
    x = 12,974.80

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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.