Home / 14,320.96-21,472.76-6,422.00

Finding the Fourth Proportional to 14,320.96, 21,472.76 and 6,422.00

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Solution

The fourth proportional to 14,320.96, 21,472.76 and 6,422.00 is: 9,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.96 : 21,472.76 = 6,422.00 : x
  2. Step 2: Convert to fraction form
    14,320.96/21,472.76 = 6,422.00/x
  3. Step 3: Cross multiply
    14,320.96x = 21,472.76 × 6,422.00
  4. Step 4: Simplify right side
    14,320.96x = 137,897,973.41
  5. Step 5: Solve for x
    x = 137,897,973.41/14,320.96
  6. Step 6: Final answer
    x = 9,629.10

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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.