Home / 13,511.24-18,644.64-8,475.24

Finding the Fourth Proportional to 13,511.24, 18,644.64 and 8,475.24

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Solution

The fourth proportional to 13,511.24, 18,644.64 and 8,475.24 is: 11,695.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,511.24 : 18,644.64 = 8,475.24 : x
  2. Step 2: Convert to fraction form
    13,511.24/18,644.64 = 8,475.24/x
  3. Step 3: Cross multiply
    13,511.24x = 18,644.64 × 8,475.24
  4. Step 4: Simplify right side
    13,511.24x = 158,017,798.71
  5. Step 5: Solve for x
    x = 158,017,798.71/13,511.24
  6. Step 6: Final answer
    x = 11,695.28

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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.