Home / 19,188.36-26,471.88-12,471.84

Finding the Fourth Proportional to 19,188.36, 26,471.88 and 12,471.84

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Solution

The fourth proportional to 19,188.36, 26,471.88 and 12,471.84 is: 17,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.36 : 26,471.88 = 12,471.84 : x
  2. Step 2: Convert to fraction form
    19,188.36/26,471.88 = 12,471.84/x
  3. Step 3: Cross multiply
    19,188.36x = 26,471.88 × 12,471.84
  4. Step 4: Simplify right side
    19,188.36x = 330,153,051.86
  5. Step 5: Solve for x
    x = 330,153,051.86/19,188.36
  6. Step 6: Final answer
    x = 17,205.90

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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.