Home / 14,580.36-20,120.45-8,207.30

Finding the Fourth Proportional to 14,580.36, 20,120.45 and 8,207.30

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Solution

The fourth proportional to 14,580.36, 20,120.45 and 8,207.30 is: 11,325.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,580.36 : 20,120.45 = 8,207.30 : x
  2. Step 2: Convert to fraction form
    14,580.36/20,120.45 = 8,207.30/x
  3. Step 3: Cross multiply
    14,580.36x = 20,120.45 × 8,207.30
  4. Step 4: Simplify right side
    14,580.36x = 165,134,569.29
  5. Step 5: Solve for x
    x = 165,134,569.29/14,580.36
  6. Step 6: Final answer
    x = 11,325.82

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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.