Home / 13,238.52-19,818.90-10,445.64

Finding the Fourth Proportional to 13,238.52, 19,818.90 and 10,445.64

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Solution

The fourth proportional to 13,238.52, 19,818.90 and 10,445.64 is: 15,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.52 : 19,818.90 = 10,445.64 : x
  2. Step 2: Convert to fraction form
    13,238.52/19,818.90 = 10,445.64/x
  3. Step 3: Cross multiply
    13,238.52x = 19,818.90 × 10,445.64
  4. Step 4: Simplify right side
    13,238.52x = 207,021,094.60
  5. Step 5: Solve for x
    x = 207,021,094.60/13,238.52
  6. Step 6: Final answer
    x = 15,637.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.