Home / 15,349.80-21,163.50-12,835.56

Finding the Fourth Proportional to 15,349.80, 21,163.50 and 12,835.56

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Solution

The fourth proportional to 15,349.80, 21,163.50 and 12,835.56 is: 17,697.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.80 : 21,163.50 = 12,835.56 : x
  2. Step 2: Convert to fraction form
    15,349.80/21,163.50 = 12,835.56/x
  3. Step 3: Cross multiply
    15,349.80x = 21,163.50 × 12,835.56
  4. Step 4: Simplify right side
    15,349.80x = 271,645,374.06
  5. Step 5: Solve for x
    x = 271,645,374.06/15,349.80
  6. Step 6: Final answer
    x = 17,697.00

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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.