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Finding the Fourth Proportional to 13,063.68, 18,018.84 and 10,904.16

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Solution

The fourth proportional to 13,063.68, 18,018.84 and 10,904.16 is: 15,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,063.68 : 18,018.84 = 10,904.16 : x
  2. Step 2: Convert to fraction form
    13,063.68/18,018.84 = 10,904.16/x
  3. Step 3: Cross multiply
    13,063.68x = 18,018.84 × 10,904.16
  4. Step 4: Simplify right side
    13,063.68x = 196,480,314.37
  5. Step 5: Solve for x
    x = 196,480,314.37/13,063.68
  6. Step 6: Final answer
    x = 15,040.20

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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.