Home / 19,419.90-26,785.26-12,694.74

Finding the Fourth Proportional to 19,419.90, 26,785.26 and 12,694.74

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Solution

The fourth proportional to 19,419.90, 26,785.26 and 12,694.74 is: 17,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.90 : 26,785.26 = 12,694.74 : x
  2. Step 2: Convert to fraction form
    19,419.90/26,785.26 = 12,694.74/x
  3. Step 3: Cross multiply
    19,419.90x = 26,785.26 × 12,694.74
  4. Step 4: Simplify right side
    19,419.90x = 340,031,911.53
  5. Step 5: Solve for x
    x = 340,031,911.53/19,419.90
  6. Step 6: Final answer
    x = 17,509.46

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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.