Home / 15,002.69-20,705.36-11,219.18

Finding the Fourth Proportional to 15,002.69, 20,705.36 and 11,219.18

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Solution

The fourth proportional to 15,002.69, 20,705.36 and 11,219.18 is: 15,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.69 : 20,705.36 = 11,219.18 : x
  2. Step 2: Convert to fraction form
    15,002.69/20,705.36 = 11,219.18/x
  3. Step 3: Cross multiply
    15,002.69x = 20,705.36 × 11,219.18
  4. Step 4: Simplify right side
    15,002.69x = 232,297,001.18
  5. Step 5: Solve for x
    x = 232,297,001.18/15,002.69
  6. Step 6: Final answer
    x = 15,483.70

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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.