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Finding the Fourth Proportional to 12,737.80, 19,106.70 and 4,946.68

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Solution

The fourth proportional to 12,737.80, 19,106.70 and 4,946.68 is: 7,420.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,737.80 : 19,106.70 = 4,946.68 : x
  2. Step 2: Convert to fraction form
    12,737.80/19,106.70 = 4,946.68/x
  3. Step 3: Cross multiply
    12,737.80x = 19,106.70 × 4,946.68
  4. Step 4: Simplify right side
    12,737.80x = 94,514,730.76
  5. Step 5: Solve for x
    x = 94,514,730.76/12,737.80
  6. Step 6: Final answer
    x = 7,420.02

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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.