Home / 19,110.39-26,384.83-12,415.10

Finding the Fourth Proportional to 19,110.39, 26,384.83 and 12,415.10

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Solution

The fourth proportional to 19,110.39, 26,384.83 and 12,415.10 is: 17,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110.39 : 26,384.83 = 12,415.10 : x
  2. Step 2: Convert to fraction form
    19,110.39/26,384.83 = 12,415.10/x
  3. Step 3: Cross multiply
    19,110.39x = 26,384.83 × 12,415.10
  4. Step 4: Simplify right side
    19,110.39x = 327,570,141.91
  5. Step 5: Solve for x
    x = 327,570,141.91/19,110.39
  6. Step 6: Final answer
    x = 17,140.95

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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.