Home / 13,137.74-18,125.34-10,113.79

Finding the Fourth Proportional to 13,137.74, 18,125.34 and 10,113.79

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Solution

The fourth proportional to 13,137.74, 18,125.34 and 10,113.79 is: 13,953.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,137.74 : 18,125.34 = 10,113.79 : x
  2. Step 2: Convert to fraction form
    13,137.74/18,125.34 = 10,113.79/x
  3. Step 3: Cross multiply
    13,137.74x = 18,125.34 × 10,113.79
  4. Step 4: Simplify right side
    13,137.74x = 183,315,890.07
  5. Step 5: Solve for x
    x = 183,315,890.07/13,137.74
  6. Step 6: Final answer
    x = 13,953.38

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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.