Home / 18,946.76-28,411.50-12,272.36

Finding the Fourth Proportional to 18,946.76, 28,411.50 and 12,272.36

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Solution

The fourth proportional to 18,946.76, 28,411.50 and 12,272.36 is: 18,402.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.76 : 28,411.50 = 12,272.36 : x
  2. Step 2: Convert to fraction form
    18,946.76/28,411.50 = 12,272.36/x
  3. Step 3: Cross multiply
    18,946.76x = 28,411.50 × 12,272.36
  4. Step 4: Simplify right side
    18,946.76x = 348,676,156.14
  5. Step 5: Solve for x
    x = 348,676,156.14/18,946.76
  6. Step 6: Final answer
    x = 18,402.94

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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.