Home / 19,187.48-28,733.16-12,146.24

Finding the Fourth Proportional to 19,187.48, 28,733.16 and 12,146.24

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Solution

The fourth proportional to 19,187.48, 28,733.16 and 12,146.24 is: 18,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.48 : 28,733.16 = 12,146.24 : x
  2. Step 2: Convert to fraction form
    19,187.48/28,733.16 = 12,146.24/x
  3. Step 3: Cross multiply
    19,187.48x = 28,733.16 × 12,146.24
  4. Step 4: Simplify right side
    19,187.48x = 348,999,857.32
  5. Step 5: Solve for x
    x = 348,999,857.32/19,187.48
  6. Step 6: Final answer
    x = 18,188.94

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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.