Home / 8,682.12-11,981.32-4,703.20

Finding the Fourth Proportional to 8,682.12, 11,981.32 and 4,703.20

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Solution

The fourth proportional to 8,682.12, 11,981.32 and 4,703.20 is: 6,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.12 : 11,981.32 = 4,703.20 : x
  2. Step 2: Convert to fraction form
    8,682.12/11,981.32 = 4,703.20/x
  3. Step 3: Cross multiply
    8,682.12x = 11,981.32 × 4,703.20
  4. Step 4: Simplify right side
    8,682.12x = 56,350,502.51
  5. Step 5: Solve for x
    x = 56,350,502.51/8,682.12
  6. Step 6: Final answer
    x = 6,490.41

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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.