Home / 17,389.91-26,077.77-8,509.07

Finding the Fourth Proportional to 17,389.91, 26,077.77 and 8,509.07

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Solution

The fourth proportional to 17,389.91, 26,077.77 and 8,509.07 is: 12,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,389.91 : 26,077.77 = 8,509.07 : x
  2. Step 2: Convert to fraction form
    17,389.91/26,077.77 = 8,509.07/x
  3. Step 3: Cross multiply
    17,389.91x = 26,077.77 × 8,509.07
  4. Step 4: Simplify right side
    17,389.91x = 221,897,439.99
  5. Step 5: Solve for x
    x = 221,897,439.99/17,389.91
  6. Step 6: Final answer
    x = 12,760.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.