Home / 17,916.79-26,845.26-12,643.09

Finding the Fourth Proportional to 17,916.79, 26,845.26 and 12,643.09

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Solution

The fourth proportional to 17,916.79, 26,845.26 and 12,643.09 is: 18,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,916.79 : 26,845.26 = 12,643.09 : x
  2. Step 2: Convert to fraction form
    17,916.79/26,845.26 = 12,643.09/x
  3. Step 3: Cross multiply
    17,916.79x = 26,845.26 × 12,643.09
  4. Step 4: Simplify right side
    17,916.79x = 339,407,038.25
  5. Step 5: Solve for x
    x = 339,407,038.25/17,916.79
  6. Step 6: Final answer
    x = 18,943.52

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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.