Home / 10,620.18-15,918.26-5,346.81

Finding the Fourth Proportional to 10,620.18, 15,918.26 and 5,346.81

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Solution

The fourth proportional to 10,620.18, 15,918.26 and 5,346.81 is: 8,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.18 : 15,918.26 = 5,346.81 : x
  2. Step 2: Convert to fraction form
    10,620.18/15,918.26 = 5,346.81/x
  3. Step 3: Cross multiply
    10,620.18x = 15,918.26 × 5,346.81
  4. Step 4: Simplify right side
    10,620.18x = 85,111,885.02
  5. Step 5: Solve for x
    x = 85,111,885.02/10,620.18
  6. Step 6: Final answer
    x = 8,014.17

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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.