Home / 13,571.46-18,728.51-7,603.18

Finding the Fourth Proportional to 13,571.46, 18,728.51 and 7,603.18

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Solution

The fourth proportional to 13,571.46, 18,728.51 and 7,603.18 is: 10,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.46 : 18,728.51 = 7,603.18 : x
  2. Step 2: Convert to fraction form
    13,571.46/18,728.51 = 7,603.18/x
  3. Step 3: Cross multiply
    13,571.46x = 18,728.51 × 7,603.18
  4. Step 4: Simplify right side
    13,571.46x = 142,396,129.52
  5. Step 5: Solve for x
    x = 142,396,129.52/13,571.46
  6. Step 6: Final answer
    x = 10,492.32

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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.