Home / 11,988.53-17,970.25-4,088.28

Finding the Fourth Proportional to 11,988.53, 17,970.25 and 4,088.28

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Solution

The fourth proportional to 11,988.53, 17,970.25 and 4,088.28 is: 6,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.53 : 17,970.25 = 4,088.28 : x
  2. Step 2: Convert to fraction form
    11,988.53/17,970.25 = 4,088.28/x
  3. Step 3: Cross multiply
    11,988.53x = 17,970.25 × 4,088.28
  4. Step 4: Simplify right side
    11,988.53x = 73,467,388.92
  5. Step 5: Solve for x
    x = 73,467,388.92/11,988.53
  6. Step 6: Final answer
    x = 6,128.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.