Home / 13,155.91-19,733.58-4,271.22

Finding the Fourth Proportional to 13,155.91, 19,733.58 and 4,271.22

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Solution

The fourth proportional to 13,155.91, 19,733.58 and 4,271.22 is: 6,406.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.91 : 19,733.58 = 4,271.22 : x
  2. Step 2: Convert to fraction form
    13,155.91/19,733.58 = 4,271.22/x
  3. Step 3: Cross multiply
    13,155.91x = 19,733.58 × 4,271.22
  4. Step 4: Simplify right side
    13,155.91x = 84,286,486.23
  5. Step 5: Solve for x
    x = 84,286,486.23/13,155.91
  6. Step 6: Final answer
    x = 6,406.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.