Home / 11,217.18-16,779.51-9,220.32

Finding the Fourth Proportional to 11,217.18, 16,779.51 and 9,220.32

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Solution

The fourth proportional to 11,217.18, 16,779.51 and 9,220.32 is: 13,792.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.18 : 16,779.51 = 9,220.32 : x
  2. Step 2: Convert to fraction form
    11,217.18/16,779.51 = 9,220.32/x
  3. Step 3: Cross multiply
    11,217.18x = 16,779.51 × 9,220.32
  4. Step 4: Simplify right side
    11,217.18x = 154,712,451.64
  5. Step 5: Solve for x
    x = 154,712,451.64/11,217.18
  6. Step 6: Final answer
    x = 13,792.46

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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.