Home / 8,456.70-11,670.43-5,477.72

Finding the Fourth Proportional to 8,456.70, 11,670.43 and 5,477.72

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Solution

The fourth proportional to 8,456.70, 11,670.43 and 5,477.72 is: 7,559.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.70 : 11,670.43 = 5,477.72 : x
  2. Step 2: Convert to fraction form
    8,456.70/11,670.43 = 5,477.72/x
  3. Step 3: Cross multiply
    8,456.70x = 11,670.43 × 5,477.72
  4. Step 4: Simplify right side
    8,456.70x = 63,927,293.75
  5. Step 5: Solve for x
    x = 63,927,293.75/8,456.70
  6. Step 6: Final answer
    x = 7,559.37

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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.