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Finding the Fourth Proportional to 18,130.71, 25,019.99 and 10,063.89

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Solution

The fourth proportional to 18,130.71, 25,019.99 and 10,063.89 is: 13,887.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.71 : 25,019.99 = 10,063.89 : x
  2. Step 2: Convert to fraction form
    18,130.71/25,019.99 = 10,063.89/x
  3. Step 3: Cross multiply
    18,130.71x = 25,019.99 × 10,063.89
  4. Step 4: Simplify right side
    18,130.71x = 251,798,376.84
  5. Step 5: Solve for x
    x = 251,798,376.84/18,130.71
  6. Step 6: Final answer
    x = 13,887.95

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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.