Home / 14,779.62-20,389.35-9,997.86

Finding the Fourth Proportional to 14,779.62, 20,389.35 and 9,997.86

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Solution

The fourth proportional to 14,779.62, 20,389.35 and 9,997.86 is: 13,792.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.62 : 20,389.35 = 9,997.86 : x
  2. Step 2: Convert to fraction form
    14,779.62/20,389.35 = 9,997.86/x
  3. Step 3: Cross multiply
    14,779.62x = 20,389.35 × 9,997.86
  4. Step 4: Simplify right side
    14,779.62x = 203,849,866.79
  5. Step 5: Solve for x
    x = 203,849,866.79/14,779.62
  6. Step 6: Final answer
    x = 13,792.63

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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.