Home / 19,138.41-26,416.23-12,423.68

Finding the Fourth Proportional to 19,138.41, 26,416.23 and 12,423.68

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Solution

The fourth proportional to 19,138.41, 26,416.23 and 12,423.68 is: 17,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.41 : 26,416.23 = 12,423.68 : x
  2. Step 2: Convert to fraction form
    19,138.41/26,416.23 = 12,423.68/x
  3. Step 3: Cross multiply
    19,138.41x = 26,416.23 × 12,423.68
  4. Step 4: Simplify right side
    19,138.41x = 328,186,708.72
  5. Step 5: Solve for x
    x = 328,186,708.72/19,138.41
  6. Step 6: Final answer
    x = 17,148.07

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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.