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Finding the Fourth Proportional to 19,370, 26,732.22 and 10,988.12

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Solution

The fourth proportional to 19,370, 26,732.22 and 10,988.12 is: 15,164.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,370 : 26,732.22 = 10,988.12 : x
  2. Step 2: Convert to fraction form
    19,370/26,732.22 = 10,988.12/x
  3. Step 3: Cross multiply
    19,370x = 26,732.22 × 10,988.12
  4. Step 4: Simplify right side
    19,370x = 293,736,841.23
  5. Step 5: Solve for x
    x = 293,736,841.23/19,370
  6. Step 6: Final answer
    x = 15,164.52

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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.