Home / 14,291.20-21,443.20-6,892.80

Finding the Fourth Proportional to 14,291.20, 21,443.20 and 6,892.80

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Solution

The fourth proportional to 14,291.20, 21,443.20 and 6,892.80 is: 10,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.20 : 21,443.20 = 6,892.80 : x
  2. Step 2: Convert to fraction form
    14,291.20/21,443.20 = 6,892.80/x
  3. Step 3: Cross multiply
    14,291.20x = 21,443.20 × 6,892.80
  4. Step 4: Simplify right side
    14,291.20x = 147,803,688.96
  5. Step 5: Solve for x
    x = 147,803,688.96/14,291.20
  6. Step 6: Final answer
    x = 10,342.29

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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.