Home / 13,553.61-20,316.78-6,523.35

Finding the Fourth Proportional to 13,553.61, 20,316.78 and 6,523.35

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Solution

The fourth proportional to 13,553.61, 20,316.78 and 6,523.35 is: 9,778.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553.61 : 20,316.78 = 6,523.35 : x
  2. Step 2: Convert to fraction form
    13,553.61/20,316.78 = 6,523.35/x
  3. Step 3: Cross multiply
    13,553.61x = 20,316.78 × 6,523.35
  4. Step 4: Simplify right side
    13,553.61x = 132,533,466.81
  5. Step 5: Solve for x
    x = 132,533,466.81/13,553.61
  6. Step 6: Final answer
    x = 9,778.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.