Home / 13,746.91-18,960.95-12,616.23

Finding the Fourth Proportional to 13,746.91, 18,960.95 and 12,616.23

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Solution

The fourth proportional to 13,746.91, 18,960.95 and 12,616.23 is: 17,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.91 : 18,960.95 = 12,616.23 : x
  2. Step 2: Convert to fraction form
    13,746.91/18,960.95 = 12,616.23/x
  3. Step 3: Cross multiply
    13,746.91x = 18,960.95 × 12,616.23
  4. Step 4: Simplify right side
    13,746.91x = 239,215,643.14
  5. Step 5: Solve for x
    x = 239,215,643.14/13,746.91
  6. Step 6: Final answer
    x = 17,401.41

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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.