Home / 12,113.40-16,669.26-10,719.48

Finding the Fourth Proportional to 12,113.40, 16,669.26 and 10,719.48

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Solution

The fourth proportional to 12,113.40, 16,669.26 and 10,719.48 is: 14,751.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.40 : 16,669.26 = 10,719.48 : x
  2. Step 2: Convert to fraction form
    12,113.40/16,669.26 = 10,719.48/x
  3. Step 3: Cross multiply
    12,113.40x = 16,669.26 × 10,719.48
  4. Step 4: Simplify right side
    12,113.40x = 178,685,799.18
  5. Step 5: Solve for x
    x = 178,685,799.18/12,113.40
  6. Step 6: Final answer
    x = 14,751.09

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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.