Home / 19,762.12-29,645.40-6,615.40

Finding the Fourth Proportional to 19,762.12, 29,645.40 and 6,615.40

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Solution

The fourth proportional to 19,762.12, 29,645.40 and 6,615.40 is: 9,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.12 : 29,645.40 = 6,615.40 : x
  2. Step 2: Convert to fraction form
    19,762.12/29,645.40 = 6,615.40/x
  3. Step 3: Cross multiply
    19,762.12x = 29,645.40 × 6,615.40
  4. Step 4: Simplify right side
    19,762.12x = 196,116,179.16
  5. Step 5: Solve for x
    x = 196,116,179.16/19,762.12
  6. Step 6: Final answer
    x = 9,923.84

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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.