Home / 12,983.05-19,479.70-6,746.98

Finding the Fourth Proportional to 12,983.05, 19,479.70 and 6,746.98

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Solution

The fourth proportional to 12,983.05, 19,479.70 and 6,746.98 is: 10,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,983.05 : 19,479.70 = 6,746.98 : x
  2. Step 2: Convert to fraction form
    12,983.05/19,479.70 = 6,746.98/x
  3. Step 3: Cross multiply
    12,983.05x = 19,479.70 × 6,746.98
  4. Step 4: Simplify right side
    12,983.05x = 131,429,146.31
  5. Step 5: Solve for x
    x = 131,429,146.31/12,983.05
  6. Step 6: Final answer
    x = 10,123.13

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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.