Home / 8,215.46-11,337.48-4,679

Finding the Fourth Proportional to 8,215.46, 11,337.48 and 4,679

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Solution

The fourth proportional to 8,215.46, 11,337.48 and 4,679 is: 6,457.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.46 : 11,337.48 = 4,679 : x
  2. Step 2: Convert to fraction form
    8,215.46/11,337.48 = 4,679/x
  3. Step 3: Cross multiply
    8,215.46x = 11,337.48 × 4,679
  4. Step 4: Simplify right side
    8,215.46x = 53,048,068.92
  5. Step 5: Solve for x
    x = 53,048,068.92/8,215.46
  6. Step 6: Final answer
    x = 6,457.10

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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.