Home / 15,484.44-21,368.70-9,112.44

Finding the Fourth Proportional to 15,484.44, 21,368.70 and 9,112.44

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Solution

The fourth proportional to 15,484.44, 21,368.70 and 9,112.44 is: 12,575.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.44 : 21,368.70 = 9,112.44 : x
  2. Step 2: Convert to fraction form
    15,484.44/21,368.70 = 9,112.44/x
  3. Step 3: Cross multiply
    15,484.44x = 21,368.70 × 9,112.44
  4. Step 4: Simplify right side
    15,484.44x = 194,720,996.63
  5. Step 5: Solve for x
    x = 194,720,996.63/15,484.44
  6. Step 6: Final answer
    x = 12,575.27

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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.