Home / 11,006.40-16,509.20-4,430.80

Finding the Fourth Proportional to 11,006.40, 16,509.20 and 4,430.80

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Solution

The fourth proportional to 11,006.40, 16,509.20 and 4,430.80 is: 6,646.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,006.40 : 16,509.20 = 4,430.80 : x
  2. Step 2: Convert to fraction form
    11,006.40/16,509.20 = 4,430.80/x
  3. Step 3: Cross multiply
    11,006.40x = 16,509.20 × 4,430.80
  4. Step 4: Simplify right side
    11,006.40x = 73,148,963.36
  5. Step 5: Solve for x
    x = 73,148,963.36/11,006.40
  6. Step 6: Final answer
    x = 6,646.04

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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.