Home / 19,918.40-27,487.84-10,966.08

Finding the Fourth Proportional to 19,918.40, 27,487.84 and 10,966.08

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Solution

The fourth proportional to 19,918.40, 27,487.84 and 10,966.08 is: 15,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,918.40 : 27,487.84 = 10,966.08 : x
  2. Step 2: Convert to fraction form
    19,918.40/27,487.84 = 10,966.08/x
  3. Step 3: Cross multiply
    19,918.40x = 27,487.84 × 10,966.08
  4. Step 4: Simplify right side
    19,918.40x = 301,433,852.47
  5. Step 5: Solve for x
    x = 301,433,852.47/19,918.40
  6. Step 6: Final answer
    x = 15,133.44

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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.