Home / 8,427.65-11,629.95-4,650.77

Finding the Fourth Proportional to 8,427.65, 11,629.95 and 4,650.77

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Solution

The fourth proportional to 8,427.65, 11,629.95 and 4,650.77 is: 6,417.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.65 : 11,629.95 = 4,650.77 : x
  2. Step 2: Convert to fraction form
    8,427.65/11,629.95 = 4,650.77/x
  3. Step 3: Cross multiply
    8,427.65x = 11,629.95 × 4,650.77
  4. Step 4: Simplify right side
    8,427.65x = 54,088,190.58
  5. Step 5: Solve for x
    x = 54,088,190.58/8,427.65
  6. Step 6: Final answer
    x = 6,417.94

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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.