Home / 14,779.72-20,395.38-8,065.18

Finding the Fourth Proportional to 14,779.72, 20,395.38 and 8,065.18

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Solution

The fourth proportional to 14,779.72, 20,395.38 and 8,065.18 is: 11,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.72 : 20,395.38 = 8,065.18 : x
  2. Step 2: Convert to fraction form
    14,779.72/20,395.38 = 8,065.18/x
  3. Step 3: Cross multiply
    14,779.72x = 20,395.38 × 8,065.18
  4. Step 4: Simplify right side
    14,779.72x = 164,492,410.87
  5. Step 5: Solve for x
    x = 164,492,410.87/14,779.72
  6. Step 6: Final answer
    x = 11,129.60

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Double scale
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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.