Home / 15,362.36-21,202.86-8,988.58

Finding the Fourth Proportional to 15,362.36, 21,202.86 and 8,988.58

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Solution

The fourth proportional to 15,362.36, 21,202.86 and 8,988.58 is: 12,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.36 : 21,202.86 = 8,988.58 : x
  2. Step 2: Convert to fraction form
    15,362.36/21,202.86 = 8,988.58/x
  3. Step 3: Cross multiply
    15,362.36x = 21,202.86 × 8,988.58
  4. Step 4: Simplify right side
    15,362.36x = 190,583,612.99
  5. Step 5: Solve for x
    x = 190,583,612.99/15,362.36
  6. Step 6: Final answer
    x = 12,405.88

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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.