Home / 9,990.34-14,999.36-5,063.45

Finding the Fourth Proportional to 9,990.34, 14,999.36 and 5,063.45

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Solution

The fourth proportional to 9,990.34, 14,999.36 and 5,063.45 is: 7,602.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.34 : 14,999.36 = 5,063.45 : x
  2. Step 2: Convert to fraction form
    9,990.34/14,999.36 = 5,063.45/x
  3. Step 3: Cross multiply
    9,990.34x = 14,999.36 × 5,063.45
  4. Step 4: Simplify right side
    9,990.34x = 75,948,409.08
  5. Step 5: Solve for x
    x = 75,948,409.08/9,990.34
  6. Step 6: Final answer
    x = 7,602.19

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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.