Home / 13,053.28-19,580.64-8,465.44

Finding the Fourth Proportional to 13,053.28, 19,580.64 and 8,465.44

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Solution

The fourth proportional to 13,053.28, 19,580.64 and 8,465.44 is: 12,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.28 : 19,580.64 = 8,465.44 : x
  2. Step 2: Convert to fraction form
    13,053.28/19,580.64 = 8,465.44/x
  3. Step 3: Cross multiply
    13,053.28x = 19,580.64 × 8,465.44
  4. Step 4: Simplify right side
    13,053.28x = 165,758,733.08
  5. Step 5: Solve for x
    x = 165,758,733.08/13,053.28
  6. Step 6: Final answer
    x = 12,698.63

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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.