Home / 18,515.58-25,550.52-10,130.46

Finding the Fourth Proportional to 18,515.58, 25,550.52 and 10,130.46

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Solution

The fourth proportional to 18,515.58, 25,550.52 and 10,130.46 is: 13,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.58 : 25,550.52 = 10,130.46 : x
  2. Step 2: Convert to fraction form
    18,515.58/25,550.52 = 10,130.46/x
  3. Step 3: Cross multiply
    18,515.58x = 25,550.52 × 10,130.46
  4. Step 4: Simplify right side
    18,515.58x = 258,838,520.84
  5. Step 5: Solve for x
    x = 258,838,520.84/18,515.58
  6. Step 6: Final answer
    x = 13,979.50

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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.