Home / 8,941.66-12,337.68-5,405.06

Finding the Fourth Proportional to 8,941.66, 12,337.68 and 5,405.06

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Solution

The fourth proportional to 8,941.66, 12,337.68 and 5,405.06 is: 7,457.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,941.66 : 12,337.68 = 5,405.06 : x
  2. Step 2: Convert to fraction form
    8,941.66/12,337.68 = 5,405.06/x
  3. Step 3: Cross multiply
    8,941.66x = 12,337.68 × 5,405.06
  4. Step 4: Simplify right side
    8,941.66x = 66,685,900.66
  5. Step 5: Solve for x
    x = 66,685,900.66/8,941.66
  6. Step 6: Final answer
    x = 7,457.89

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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.