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Finding the Fourth Proportional to 10,291.14, 15,451.38 and 9,821.34

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Solution

The fourth proportional to 10,291.14, 15,451.38 and 9,821.34 is: 14,746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.14 : 15,451.38 = 9,821.34 : x
  2. Step 2: Convert to fraction form
    10,291.14/15,451.38 = 9,821.34/x
  3. Step 3: Cross multiply
    10,291.14x = 15,451.38 × 9,821.34
  4. Step 4: Simplify right side
    10,291.14x = 151,753,256.45
  5. Step 5: Solve for x
    x = 151,753,256.45/10,291.14
  6. Step 6: Final answer
    x = 14,746.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.