Home / 13,325.37-19,990.49-6,665.35

Finding the Fourth Proportional to 13,325.37, 19,990.49 and 6,665.35

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Solution

The fourth proportional to 13,325.37, 19,990.49 and 6,665.35 is: 9,999.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.37 : 19,990.49 = 6,665.35 : x
  2. Step 2: Convert to fraction form
    13,325.37/19,990.49 = 6,665.35/x
  3. Step 3: Cross multiply
    13,325.37x = 19,990.49 × 6,665.35
  4. Step 4: Simplify right side
    13,325.37x = 133,243,612.52
  5. Step 5: Solve for x
    x = 133,243,612.52/13,325.37
  6. Step 6: Final answer
    x = 9,999.24

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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.