Home / 14,747.34-20,350.64-8,779.66

Finding the Fourth Proportional to 14,747.34, 20,350.64 and 8,779.66

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Solution

The fourth proportional to 14,747.34, 20,350.64 and 8,779.66 is: 12,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,747.34 : 20,350.64 = 8,779.66 : x
  2. Step 2: Convert to fraction form
    14,747.34/20,350.64 = 8,779.66/x
  3. Step 3: Cross multiply
    14,747.34x = 20,350.64 × 8,779.66
  4. Step 4: Simplify right side
    14,747.34x = 178,671,699.98
  5. Step 5: Solve for x
    x = 178,671,699.98/14,747.34
  6. Step 6: Final answer
    x = 12,115.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.