Home / 13,321.61-19,975.56-7,085.01

Finding the Fourth Proportional to 13,321.61, 19,975.56 and 7,085.01

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Solution

The fourth proportional to 13,321.61, 19,975.56 and 7,085.01 is: 10,623.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.61 : 19,975.56 = 7,085.01 : x
  2. Step 2: Convert to fraction form
    13,321.61/19,975.56 = 7,085.01/x
  3. Step 3: Cross multiply
    13,321.61x = 19,975.56 × 7,085.01
  4. Step 4: Simplify right side
    13,321.61x = 141,527,042.36
  5. Step 5: Solve for x
    x = 141,527,042.36/13,321.61
  6. Step 6: Final answer
    x = 10,623.87

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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.