Home / 10,348.16-15,518.72-3,420.96

Finding the Fourth Proportional to 10,348.16, 15,518.72 and 3,420.96

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Solution

The fourth proportional to 10,348.16, 15,518.72 and 3,420.96 is: 5,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.16 : 15,518.72 = 3,420.96 : x
  2. Step 2: Convert to fraction form
    10,348.16/15,518.72 = 3,420.96/x
  3. Step 3: Cross multiply
    10,348.16x = 15,518.72 × 3,420.96
  4. Step 4: Simplify right side
    10,348.16x = 53,088,920.37
  5. Step 5: Solve for x
    x = 53,088,920.37/10,348.16
  6. Step 6: Final answer
    x = 5,130.28

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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.