Home / 10,006.21-13,809.45-5,531.10

Finding the Fourth Proportional to 10,006.21, 13,809.45 and 5,531.10

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Solution

The fourth proportional to 10,006.21, 13,809.45 and 5,531.10 is: 7,633.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,006.21 : 13,809.45 = 5,531.10 : x
  2. Step 2: Convert to fraction form
    10,006.21/13,809.45 = 5,531.10/x
  3. Step 3: Cross multiply
    10,006.21x = 13,809.45 × 5,531.10
  4. Step 4: Simplify right side
    10,006.21x = 76,381,448.90
  5. Step 5: Solve for x
    x = 76,381,448.90/10,006.21
  6. Step 6: Final answer
    x = 7,633.40

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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.