Home / 19,817.80-27,345.06-11,316.04

Finding the Fourth Proportional to 19,817.80, 27,345.06 and 11,316.04

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Solution

The fourth proportional to 19,817.80, 27,345.06 and 11,316.04 is: 15,614.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.80 : 27,345.06 = 11,316.04 : x
  2. Step 2: Convert to fraction form
    19,817.80/27,345.06 = 11,316.04/x
  3. Step 3: Cross multiply
    19,817.80x = 27,345.06 × 11,316.04
  4. Step 4: Simplify right side
    19,817.80x = 309,437,724.40
  5. Step 5: Solve for x
    x = 309,437,724.40/19,817.80
  6. Step 6: Final answer
    x = 15,614.13

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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.