Home / 13,730.58-18,972.93-10,958.10

Finding the Fourth Proportional to 13,730.58, 18,972.93 and 10,958.10

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Solution

The fourth proportional to 13,730.58, 18,972.93 and 10,958.10 is: 15,141.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.58 : 18,972.93 = 10,958.10 : x
  2. Step 2: Convert to fraction form
    13,730.58/18,972.93 = 10,958.10/x
  3. Step 3: Cross multiply
    13,730.58x = 18,972.93 × 10,958.10
  4. Step 4: Simplify right side
    13,730.58x = 207,907,264.23
  5. Step 5: Solve for x
    x = 207,907,264.23/13,730.58
  6. Step 6: Final answer
    x = 15,141.91

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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.