Home / 8,451.48-11,661.89-5,307.06

Finding the Fourth Proportional to 8,451.48, 11,661.89 and 5,307.06

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Solution

The fourth proportional to 8,451.48, 11,661.89 and 5,307.06 is: 7,323.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.48 : 11,661.89 = 5,307.06 : x
  2. Step 2: Convert to fraction form
    8,451.48/11,661.89 = 5,307.06/x
  3. Step 3: Cross multiply
    8,451.48x = 11,661.89 × 5,307.06
  4. Step 4: Simplify right side
    8,451.48x = 61,890,349.94
  5. Step 5: Solve for x
    x = 61,890,349.94/8,451.48
  6. Step 6: Final answer
    x = 7,323.02

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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.