Home / 13,269.15-18,318.98-8,798.93

Finding the Fourth Proportional to 13,269.15, 18,318.98 and 8,798.93

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Solution

The fourth proportional to 13,269.15, 18,318.98 and 8,798.93 is: 12,147.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.15 : 18,318.98 = 8,798.93 : x
  2. Step 2: Convert to fraction form
    13,269.15/18,318.98 = 8,798.93/x
  3. Step 3: Cross multiply
    13,269.15x = 18,318.98 × 8,798.93
  4. Step 4: Simplify right side
    13,269.15x = 161,187,490.49
  5. Step 5: Solve for x
    x = 161,187,490.49/13,269.15
  6. Step 6: Final answer
    x = 12,147.53

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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.