Home / 19,461.43-26,861.78-12,672.39

Finding the Fourth Proportional to 19,461.43, 26,861.78 and 12,672.39

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Solution

The fourth proportional to 19,461.43, 26,861.78 and 12,672.39 is: 17,491.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.43 : 26,861.78 = 12,672.39 : x
  2. Step 2: Convert to fraction form
    19,461.43/26,861.78 = 12,672.39/x
  3. Step 3: Cross multiply
    19,461.43x = 26,861.78 × 12,672.39
  4. Step 4: Simplify right side
    19,461.43x = 340,402,938.31
  5. Step 5: Solve for x
    x = 340,402,938.31/19,461.43
  6. Step 6: Final answer
    x = 17,491.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.