Home / 8,645.06-11,931.86-5,623.92

Finding the Fourth Proportional to 8,645.06, 11,931.86 and 5,623.92

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Solution

The fourth proportional to 8,645.06, 11,931.86 and 5,623.92 is: 7,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.06 : 11,931.86 = 5,623.92 : x
  2. Step 2: Convert to fraction form
    8,645.06/11,931.86 = 5,623.92/x
  3. Step 3: Cross multiply
    8,645.06x = 11,931.86 × 5,623.92
  4. Step 4: Simplify right side
    8,645.06x = 67,103,826.09
  5. Step 5: Solve for x
    x = 67,103,826.09/8,645.06
  6. Step 6: Final answer
    x = 7,762.10

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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.