Home / 12,916.02-19,370.79-6,668.49

Finding the Fourth Proportional to 12,916.02, 19,370.79 and 6,668.49

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Solution

The fourth proportional to 12,916.02, 19,370.79 and 6,668.49 is: 10,001.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,916.02 : 19,370.79 = 6,668.49 : x
  2. Step 2: Convert to fraction form
    12,916.02/19,370.79 = 6,668.49/x
  3. Step 3: Cross multiply
    12,916.02x = 19,370.79 × 6,668.49
  4. Step 4: Simplify right side
    12,916.02x = 129,173,919.41
  5. Step 5: Solve for x
    x = 129,173,919.41/12,916.02
  6. Step 6: Final answer
    x = 10,001.06

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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.