Home / 19,104.60-26,358.75-12,390.42

Finding the Fourth Proportional to 19,104.60, 26,358.75 and 12,390.42

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Solution

The fourth proportional to 19,104.60, 26,358.75 and 12,390.42 is: 17,095.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.60 : 26,358.75 = 12,390.42 : x
  2. Step 2: Convert to fraction form
    19,104.60/26,358.75 = 12,390.42/x
  3. Step 3: Cross multiply
    19,104.60x = 26,358.75 × 12,390.42
  4. Step 4: Simplify right side
    19,104.60x = 326,595,983.18
  5. Step 5: Solve for x
    x = 326,595,983.18/19,104.60
  6. Step 6: Final answer
    x = 17,095.15

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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.