Home / 18,915.66-26,103.36-10,417.59

Finding the Fourth Proportional to 18,915.66, 26,103.36 and 10,417.59

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Solution

The fourth proportional to 18,915.66, 26,103.36 and 10,417.59 is: 14,376.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915.66 : 26,103.36 = 10,417.59 : x
  2. Step 2: Convert to fraction form
    18,915.66/26,103.36 = 10,417.59/x
  3. Step 3: Cross multiply
    18,915.66x = 26,103.36 × 10,417.59
  4. Step 4: Simplify right side
    18,915.66x = 271,934,102.10
  5. Step 5: Solve for x
    x = 271,934,102.10/18,915.66
  6. Step 6: Final answer
    x = 14,376.14

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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.