Home / 18,634.40-25,715.95-10,137.00

Finding the Fourth Proportional to 18,634.40, 25,715.95 and 10,137.00

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Solution

The fourth proportional to 18,634.40, 25,715.95 and 10,137.00 is: 13,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,634.40 : 25,715.95 = 10,137.00 : x
  2. Step 2: Convert to fraction form
    18,634.40/25,715.95 = 10,137.00/x
  3. Step 3: Cross multiply
    18,634.40x = 25,715.95 × 10,137.00
  4. Step 4: Simplify right side
    18,634.40x = 260,682,656.24
  5. Step 5: Solve for x
    x = 260,682,656.24/18,634.40
  6. Step 6: Final answer
    x = 13,989.32

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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.