Home / 11,828.96-16,317.60-7,351.20

Finding the Fourth Proportional to 11,828.96, 16,317.60 and 7,351.20

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Solution

The fourth proportional to 11,828.96, 16,317.60 and 7,351.20 is: 10,140.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,828.96 : 16,317.60 = 7,351.20 : x
  2. Step 2: Convert to fraction form
    11,828.96/16,317.60 = 7,351.20/x
  3. Step 3: Cross multiply
    11,828.96x = 16,317.60 × 7,351.20
  4. Step 4: Simplify right side
    11,828.96x = 119,953,941.12
  5. Step 5: Solve for x
    x = 119,953,941.12/11,828.96
  6. Step 6: Final answer
    x = 10,140.70

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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.