Home / 13,386.98-20,071.82-8,997.86

Finding the Fourth Proportional to 13,386.98, 20,071.82 and 8,997.86

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Solution

The fourth proportional to 13,386.98, 20,071.82 and 8,997.86 is: 13,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.98 : 20,071.82 = 8,997.86 : x
  2. Step 2: Convert to fraction form
    13,386.98/20,071.82 = 8,997.86/x
  3. Step 3: Cross multiply
    13,386.98x = 20,071.82 × 8,997.86
  4. Step 4: Simplify right side
    13,386.98x = 180,603,426.31
  5. Step 5: Solve for x
    x = 180,603,426.31/13,386.98
  6. Step 6: Final answer
    x = 13,490.98

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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.