Home / 18,916.61-26,104.69-10,418.55

Finding the Fourth Proportional to 18,916.61, 26,104.69 and 10,418.55

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Solution

The fourth proportional to 18,916.61, 26,104.69 and 10,418.55 is: 14,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.61 : 26,104.69 = 10,418.55 : x
  2. Step 2: Convert to fraction form
    18,916.61/26,104.69 = 10,418.55/x
  3. Step 3: Cross multiply
    18,916.61x = 26,104.69 × 10,418.55
  4. Step 4: Simplify right side
    18,916.61x = 271,973,018.00
  5. Step 5: Solve for x
    x = 271,973,018.00/18,916.61
  6. Step 6: Final answer
    x = 14,377.47

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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.