Home / 13,297.38-18,347.85-8,326.50

Finding the Fourth Proportional to 13,297.38, 18,347.85 and 8,326.50

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Solution

The fourth proportional to 13,297.38, 18,347.85 and 8,326.50 is: 11,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.38 : 18,347.85 = 8,326.50 : x
  2. Step 2: Convert to fraction form
    13,297.38/18,347.85 = 8,326.50/x
  3. Step 3: Cross multiply
    13,297.38x = 18,347.85 × 8,326.50
  4. Step 4: Simplify right side
    13,297.38x = 152,773,373.03
  5. Step 5: Solve for x
    x = 152,773,373.03/13,297.38
  6. Step 6: Final answer
    x = 11,488.98

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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.