Home / 13,287.53-19,894.38-6,693.72

Finding the Fourth Proportional to 13,287.53, 19,894.38 and 6,693.72

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Solution

The fourth proportional to 13,287.53, 19,894.38 and 6,693.72 is: 10,021.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.53 : 19,894.38 = 6,693.72 : x
  2. Step 2: Convert to fraction form
    13,287.53/19,894.38 = 6,693.72/x
  3. Step 3: Cross multiply
    13,287.53x = 19,894.38 × 6,693.72
  4. Step 4: Simplify right side
    13,287.53x = 133,167,409.29
  5. Step 5: Solve for x
    x = 133,167,409.29/13,287.53
  6. Step 6: Final answer
    x = 10,021.98

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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.