Home / 19,659.08-27,130.06-11,161.02

Finding the Fourth Proportional to 19,659.08, 27,130.06 and 11,161.02

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Solution

The fourth proportional to 19,659.08, 27,130.06 and 11,161.02 is: 15,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.08 : 27,130.06 = 11,161.02 : x
  2. Step 2: Convert to fraction form
    19,659.08/27,130.06 = 11,161.02/x
  3. Step 3: Cross multiply
    19,659.08x = 27,130.06 × 11,161.02
  4. Step 4: Simplify right side
    19,659.08x = 302,799,142.26
  5. Step 5: Solve for x
    x = 302,799,142.26/19,659.08
  6. Step 6: Final answer
    x = 15,402.51

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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.