Home / 10,002.45-13,802.88-6,412.44

Finding the Fourth Proportional to 10,002.45, 13,802.88 and 6,412.44

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Solution

The fourth proportional to 10,002.45, 13,802.88 and 6,412.44 is: 8,848.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.45 : 13,802.88 = 6,412.44 : x
  2. Step 2: Convert to fraction form
    10,002.45/13,802.88 = 6,412.44/x
  3. Step 3: Cross multiply
    10,002.45x = 13,802.88 × 6,412.44
  4. Step 4: Simplify right side
    10,002.45x = 88,510,139.83
  5. Step 5: Solve for x
    x = 88,510,139.83/10,002.45
  6. Step 6: Final answer
    x = 8,848.85

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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.