Home / 18,852.64-26,026.40-13,288.48

Finding the Fourth Proportional to 18,852.64, 26,026.40 and 13,288.48

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Solution

The fourth proportional to 18,852.64, 26,026.40 and 13,288.48 is: 18,344.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.64 : 26,026.40 = 13,288.48 : x
  2. Step 2: Convert to fraction form
    18,852.64/26,026.40 = 13,288.48/x
  3. Step 3: Cross multiply
    18,852.64x = 26,026.40 × 13,288.48
  4. Step 4: Simplify right side
    18,852.64x = 345,851,295.87
  5. Step 5: Solve for x
    x = 345,851,295.87/18,852.64
  6. Step 6: Final answer
    x = 18,344.98

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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.