Home / 19,911.72-27,480.02-10,961.04

Finding the Fourth Proportional to 19,911.72, 27,480.02 and 10,961.04

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Solution

The fourth proportional to 19,911.72, 27,480.02 and 10,961.04 is: 15,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.72 : 27,480.02 = 10,961.04 : x
  2. Step 2: Convert to fraction form
    19,911.72/27,480.02 = 10,961.04/x
  3. Step 3: Cross multiply
    19,911.72x = 27,480.02 × 10,961.04
  4. Step 4: Simplify right side
    19,911.72x = 301,209,598.42
  5. Step 5: Solve for x
    x = 301,209,598.42/19,911.72
  6. Step 6: Final answer
    x = 15,127.25

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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.