Home / 13,618.62-18,800.91-10,587.06

Finding the Fourth Proportional to 13,618.62, 18,800.91 and 10,587.06

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Solution

The fourth proportional to 13,618.62, 18,800.91 and 10,587.06 is: 14,615.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618.62 : 18,800.91 = 10,587.06 : x
  2. Step 2: Convert to fraction form
    13,618.62/18,800.91 = 10,587.06/x
  3. Step 3: Cross multiply
    13,618.62x = 18,800.91 × 10,587.06
  4. Step 4: Simplify right side
    13,618.62x = 199,046,362.22
  5. Step 5: Solve for x
    x = 199,046,362.22/13,618.62
  6. Step 6: Final answer
    x = 14,615.75

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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.