Home / 18,746.83-28,127.35-11,255.63

Finding the Fourth Proportional to 18,746.83, 28,127.35 and 11,255.63

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Solution

The fourth proportional to 18,746.83, 28,127.35 and 11,255.63 is: 16,887.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.83 : 28,127.35 = 11,255.63 : x
  2. Step 2: Convert to fraction form
    18,746.83/28,127.35 = 11,255.63/x
  3. Step 3: Cross multiply
    18,746.83x = 28,127.35 × 11,255.63
  4. Step 4: Simplify right side
    18,746.83x = 316,590,903.84
  5. Step 5: Solve for x
    x = 316,590,903.84/18,746.83
  6. Step 6: Final answer
    x = 16,887.70

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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.