Home / 18,915.60-26,103.32-10,417.56

Finding the Fourth Proportional to 18,915.60, 26,103.32 and 10,417.56

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Solution

The fourth proportional to 18,915.60, 26,103.32 and 10,417.56 is: 14,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915.60 : 26,103.32 = 10,417.56 : x
  2. Step 2: Convert to fraction form
    18,915.60/26,103.32 = 10,417.56/x
  3. Step 3: Cross multiply
    18,915.60x = 26,103.32 × 10,417.56
  4. Step 4: Simplify right side
    18,915.60x = 271,932,902.30
  5. Step 5: Solve for x
    x = 271,932,902.30/18,915.60
  6. Step 6: Final answer
    x = 14,376.12

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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.