Home / 14,040.72-19,380.60-9,005.76

Finding the Fourth Proportional to 14,040.72, 19,380.60 and 9,005.76

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Solution

The fourth proportional to 14,040.72, 19,380.60 and 9,005.76 is: 12,430.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040.72 : 19,380.60 = 9,005.76 : x
  2. Step 2: Convert to fraction form
    14,040.72/19,380.60 = 9,005.76/x
  3. Step 3: Cross multiply
    14,040.72x = 19,380.60 × 9,005.76
  4. Step 4: Simplify right side
    14,040.72x = 174,537,032.26
  5. Step 5: Solve for x
    x = 174,537,032.26/14,040.72
  6. Step 6: Final answer
    x = 12,430.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.