Home / 11,720.77-16,174.65-6,615.95

Finding the Fourth Proportional to 11,720.77, 16,174.65 and 6,615.95

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Solution

The fourth proportional to 11,720.77, 16,174.65 and 6,615.95 is: 9,130.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.77 : 16,174.65 = 6,615.95 : x
  2. Step 2: Convert to fraction form
    11,720.77/16,174.65 = 6,615.95/x
  3. Step 3: Cross multiply
    11,720.77x = 16,174.65 × 6,615.95
  4. Step 4: Simplify right side
    11,720.77x = 107,010,675.67
  5. Step 5: Solve for x
    x = 107,010,675.67/11,720.77
  6. Step 6: Final answer
    x = 9,130.00

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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.