Home / 13,718.75-18,932.01-7,431.26

Finding the Fourth Proportional to 13,718.75, 18,932.01 and 7,431.26

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Solution

The fourth proportional to 13,718.75, 18,932.01 and 7,431.26 is: 10,255.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.75 : 18,932.01 = 7,431.26 : x
  2. Step 2: Convert to fraction form
    13,718.75/18,932.01 = 7,431.26/x
  3. Step 3: Cross multiply
    13,718.75x = 18,932.01 × 7,431.26
  4. Step 4: Simplify right side
    13,718.75x = 140,688,688.63
  5. Step 5: Solve for x
    x = 140,688,688.63/13,718.75
  6. Step 6: Final answer
    x = 10,255.21

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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.