Home / 18,999.28-26,235.12-14,275.36

Finding the Fourth Proportional to 18,999.28, 26,235.12 and 14,275.36

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Solution

The fourth proportional to 18,999.28, 26,235.12 and 14,275.36 is: 19,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.28 : 26,235.12 = 14,275.36 : x
  2. Step 2: Convert to fraction form
    18,999.28/26,235.12 = 14,275.36/x
  3. Step 3: Cross multiply
    18,999.28x = 26,235.12 × 14,275.36
  4. Step 4: Simplify right side
    18,999.28x = 374,515,782.64
  5. Step 5: Solve for x
    x = 374,515,782.64/18,999.28
  6. Step 6: Final answer
    x = 19,712.10

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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.