Home / 15,054.41-20,775.86-8,340.77

Finding the Fourth Proportional to 15,054.41, 20,775.86 and 8,340.77

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Solution

The fourth proportional to 15,054.41, 20,775.86 and 8,340.77 is: 11,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.41 : 20,775.86 = 8,340.77 : x
  2. Step 2: Convert to fraction form
    15,054.41/20,775.86 = 8,340.77/x
  3. Step 3: Cross multiply
    15,054.41x = 20,775.86 × 8,340.77
  4. Step 4: Simplify right side
    15,054.41x = 173,286,669.81
  5. Step 5: Solve for x
    x = 173,286,669.81/15,054.41
  6. Step 6: Final answer
    x = 11,510.69

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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.