Home / 13,521.52-18,677.96-10,189.52

Finding the Fourth Proportional to 13,521.52, 18,677.96 and 10,189.52

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Solution

The fourth proportional to 13,521.52, 18,677.96 and 10,189.52 is: 14,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521.52 : 18,677.96 = 10,189.52 : x
  2. Step 2: Convert to fraction form
    13,521.52/18,677.96 = 10,189.52/x
  3. Step 3: Cross multiply
    13,521.52x = 18,677.96 × 10,189.52
  4. Step 4: Simplify right side
    13,521.52x = 190,319,446.98
  5. Step 5: Solve for x
    x = 190,319,446.98/13,521.52
  6. Step 6: Final answer
    x = 14,075.30

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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.