Home / 8,720.13-12,013.52-6,028.77

Finding the Fourth Proportional to 8,720.13, 12,013.52 and 6,028.77

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Solution

The fourth proportional to 8,720.13, 12,013.52 and 6,028.77 is: 8,305.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720.13 : 12,013.52 = 6,028.77 : x
  2. Step 2: Convert to fraction form
    8,720.13/12,013.52 = 6,028.77/x
  3. Step 3: Cross multiply
    8,720.13x = 12,013.52 × 6,028.77
  4. Step 4: Simplify right side
    8,720.13x = 72,426,718.83
  5. Step 5: Solve for x
    x = 72,426,718.83/8,720.13
  6. Step 6: Final answer
    x = 8,305.69

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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.