Home / 14,748.35-20,354.83-8,779.86

Finding the Fourth Proportional to 14,748.35, 20,354.83 and 8,779.86

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Solution

The fourth proportional to 14,748.35, 20,354.83 and 8,779.86 is: 12,117.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,748.35 : 20,354.83 = 8,779.86 : x
  2. Step 2: Convert to fraction form
    14,748.35/20,354.83 = 8,779.86/x
  3. Step 3: Cross multiply
    14,748.35x = 20,354.83 × 8,779.86
  4. Step 4: Simplify right side
    14,748.35x = 178,712,535.77
  5. Step 5: Solve for x
    x = 178,712,535.77/14,748.35
  6. Step 6: Final answer
    x = 12,117.46

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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.