Home / 13,329.96-18,396.43-7,666.54

Finding the Fourth Proportional to 13,329.96, 18,396.43 and 7,666.54

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Solution

The fourth proportional to 13,329.96, 18,396.43 and 7,666.54 is: 10,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.96 : 18,396.43 = 7,666.54 : x
  2. Step 2: Convert to fraction form
    13,329.96/18,396.43 = 7,666.54/x
  3. Step 3: Cross multiply
    13,329.96x = 18,396.43 × 7,666.54
  4. Step 4: Simplify right side
    13,329.96x = 141,036,901.29
  5. Step 5: Solve for x
    x = 141,036,901.29/13,329.96
  6. Step 6: Final answer
    x = 10,580.45

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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.