Home / 13,395.15-18,485.75-8,088.91

Finding the Fourth Proportional to 13,395.15, 18,485.75 and 8,088.91

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Solution

The fourth proportional to 13,395.15, 18,485.75 and 8,088.91 is: 11,162.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.15 : 18,485.75 = 8,088.91 : x
  2. Step 2: Convert to fraction form
    13,395.15/18,485.75 = 8,088.91/x
  3. Step 3: Cross multiply
    13,395.15x = 18,485.75 × 8,088.91
  4. Step 4: Simplify right side
    13,395.15x = 149,529,542.04
  5. Step 5: Solve for x
    x = 149,529,542.04/13,395.15
  6. Step 6: Final answer
    x = 11,162.96

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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.