Home / 8,215.86-11,337.90-4,679.10

Finding the Fourth Proportional to 8,215.86, 11,337.90 and 4,679.10

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Solution

The fourth proportional to 8,215.86, 11,337.90 and 4,679.10 is: 6,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.86 : 11,337.90 = 4,679.10 : x
  2. Step 2: Convert to fraction form
    8,215.86/11,337.90 = 4,679.10/x
  3. Step 3: Cross multiply
    8,215.86x = 11,337.90 × 4,679.10
  4. Step 4: Simplify right side
    8,215.86x = 53,051,167.89
  5. Step 5: Solve for x
    x = 53,051,167.89/8,215.86
  6. Step 6: Final answer
    x = 6,457.17

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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.