Home / 13,355.96-18,423.53-8,501.71

Finding the Fourth Proportional to 13,355.96, 18,423.53 and 8,501.71

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Solution

The fourth proportional to 13,355.96, 18,423.53 and 8,501.71 is: 11,727.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.96 : 18,423.53 = 8,501.71 : x
  2. Step 2: Convert to fraction form
    13,355.96/18,423.53 = 8,501.71/x
  3. Step 3: Cross multiply
    13,355.96x = 18,423.53 × 8,501.71
  4. Step 4: Simplify right side
    13,355.96x = 156,631,538.91
  5. Step 5: Solve for x
    x = 156,631,538.91/13,355.96
  6. Step 6: Final answer
    x = 11,727.46

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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.