Home / 11,010.60-16,515.90-9,779.40

Finding the Fourth Proportional to 11,010.60, 16,515.90 and 9,779.40

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Solution

The fourth proportional to 11,010.60, 16,515.90 and 9,779.40 is: 14,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,010.60 : 16,515.90 = 9,779.40 : x
  2. Step 2: Convert to fraction form
    11,010.60/16,515.90 = 9,779.40/x
  3. Step 3: Cross multiply
    11,010.60x = 16,515.90 × 9,779.40
  4. Step 4: Simplify right side
    11,010.60x = 161,515,592.46
  5. Step 5: Solve for x
    x = 161,515,592.46/11,010.60
  6. Step 6: Final answer
    x = 14,669.10

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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.