Home / 13,316.10-18,363.10-10,330.86

Finding the Fourth Proportional to 13,316.10, 18,363.10 and 10,330.86

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Solution

The fourth proportional to 13,316.10, 18,363.10 and 10,330.86 is: 14,246.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.10 : 18,363.10 = 10,330.86 : x
  2. Step 2: Convert to fraction form
    13,316.10/18,363.10 = 10,330.86/x
  3. Step 3: Cross multiply
    13,316.10x = 18,363.10 × 10,330.86
  4. Step 4: Simplify right side
    13,316.10x = 189,706,615.27
  5. Step 5: Solve for x
    x = 189,706,615.27/13,316.10
  6. Step 6: Final answer
    x = 14,246.41

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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.