Home / 19,659.80-27,130.67-10,707.13

Finding the Fourth Proportional to 19,659.80, 27,130.67 and 10,707.13

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Solution

The fourth proportional to 19,659.80, 27,130.67 and 10,707.13 is: 14,775.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.80 : 27,130.67 = 10,707.13 : x
  2. Step 2: Convert to fraction form
    19,659.80/27,130.67 = 10,707.13/x
  3. Step 3: Cross multiply
    19,659.80x = 27,130.67 × 10,707.13
  4. Step 4: Simplify right side
    19,659.80x = 290,491,569.62
  5. Step 5: Solve for x
    x = 290,491,569.62/19,659.80
  6. Step 6: Final answer
    x = 14,775.91

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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.