Home / 13,296.98-18,345.68-7,916.96

Finding the Fourth Proportional to 13,296.98, 18,345.68 and 7,916.96

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Solution

The fourth proportional to 13,296.98, 18,345.68 and 7,916.96 is: 10,922.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.98 : 18,345.68 = 7,916.96 : x
  2. Step 2: Convert to fraction form
    13,296.98/18,345.68 = 7,916.96/x
  3. Step 3: Cross multiply
    13,296.98x = 18,345.68 × 7,916.96
  4. Step 4: Simplify right side
    13,296.98x = 145,242,014.73
  5. Step 5: Solve for x
    x = 145,242,014.73/13,296.98
  6. Step 6: Final answer
    x = 10,922.93

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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.