Home / 8,707.15-12,015.54-4,728.17

Finding the Fourth Proportional to 8,707.15, 12,015.54 and 4,728.17

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Solution

The fourth proportional to 8,707.15, 12,015.54 and 4,728.17 is: 6,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.15 : 12,015.54 = 4,728.17 : x
  2. Step 2: Convert to fraction form
    8,707.15/12,015.54 = 4,728.17/x
  3. Step 3: Cross multiply
    8,707.15x = 12,015.54 × 4,728.17
  4. Step 4: Simplify right side
    8,707.15x = 56,811,545.80
  5. Step 5: Solve for x
    x = 56,811,545.80/8,707.15
  6. Step 6: Final answer
    x = 6,524.70

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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.