Home / 13,225.55-18,246.29-8,445.68

Finding the Fourth Proportional to 13,225.55, 18,246.29 and 8,445.68

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Solution

The fourth proportional to 13,225.55, 18,246.29 and 8,445.68 is: 11,651.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.55 : 18,246.29 = 8,445.68 : x
  2. Step 2: Convert to fraction form
    13,225.55/18,246.29 = 8,445.68/x
  3. Step 3: Cross multiply
    13,225.55x = 18,246.29 × 8,445.68
  4. Step 4: Simplify right side
    13,225.55x = 154,102,193.07
  5. Step 5: Solve for x
    x = 154,102,193.07/13,225.55
  6. Step 6: Final answer
    x = 11,651.85

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Half scale
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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.