Home / 14,400.90-21,577.05-6,989.40

Finding the Fourth Proportional to 14,400.90, 21,577.05 and 6,989.40

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Solution

The fourth proportional to 14,400.90, 21,577.05 and 6,989.40 is: 10,472.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,400.90 : 21,577.05 = 6,989.40 : x
  2. Step 2: Convert to fraction form
    14,400.90/21,577.05 = 6,989.40/x
  3. Step 3: Cross multiply
    14,400.90x = 21,577.05 × 6,989.40
  4. Step 4: Simplify right side
    14,400.90x = 150,810,633.27
  5. Step 5: Solve for x
    x = 150,810,633.27/14,400.90
  6. Step 6: Final answer
    x = 10,472.31

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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.