Home / 13,455.36-18,570.24-8,501.76

Finding the Fourth Proportional to 13,455.36, 18,570.24 and 8,501.76

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Solution

The fourth proportional to 13,455.36, 18,570.24 and 8,501.76 is: 11,733.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.36 : 18,570.24 = 8,501.76 : x
  2. Step 2: Convert to fraction form
    13,455.36/18,570.24 = 8,501.76/x
  3. Step 3: Cross multiply
    13,455.36x = 18,570.24 × 8,501.76
  4. Step 4: Simplify right side
    13,455.36x = 157,879,723.62
  5. Step 5: Solve for x
    x = 157,879,723.62/13,455.36
  6. Step 6: Final answer
    x = 11,733.59

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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.