Home / 15,200.16-21,015.36-11,675.04

Finding the Fourth Proportional to 15,200.16, 21,015.36 and 11,675.04

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Solution

The fourth proportional to 15,200.16, 21,015.36 and 11,675.04 is: 16,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,200.16 : 21,015.36 = 11,675.04 : x
  2. Step 2: Convert to fraction form
    15,200.16/21,015.36 = 11,675.04/x
  3. Step 3: Cross multiply
    15,200.16x = 21,015.36 × 11,675.04
  4. Step 4: Simplify right side
    15,200.16x = 245,355,168.61
  5. Step 5: Solve for x
    x = 245,355,168.61/15,200.16
  6. Step 6: Final answer
    x = 16,141.62

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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.