Home / 13,818.52-19,069.64-7,530.90

Finding the Fourth Proportional to 13,818.52, 19,069.64 and 7,530.90

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Solution

The fourth proportional to 13,818.52, 19,069.64 and 7,530.90 is: 10,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.52 : 19,069.64 = 7,530.90 : x
  2. Step 2: Convert to fraction form
    13,818.52/19,069.64 = 7,530.90/x
  3. Step 3: Cross multiply
    13,818.52x = 19,069.64 × 7,530.90
  4. Step 4: Simplify right side
    13,818.52x = 143,611,551.88
  5. Step 5: Solve for x
    x = 143,611,551.88/13,818.52
  6. Step 6: Final answer
    x = 10,392.69

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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.