Home / 14,157.12-21,240-7,236.48

Finding the Fourth Proportional to 14,157.12, 21,240 and 7,236.48

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Solution

The fourth proportional to 14,157.12, 21,240 and 7,236.48 is: 10,856.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.12 : 21,240 = 7,236.48 : x
  2. Step 2: Convert to fraction form
    14,157.12/21,240 = 7,236.48/x
  3. Step 3: Cross multiply
    14,157.12x = 21,240 × 7,236.48
  4. Step 4: Simplify right side
    14,157.12x = 153,702,835.20
  5. Step 5: Solve for x
    x = 153,702,835.20/14,157.12
  6. Step 6: Final answer
    x = 10,856.93

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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.