Home / 13,790.15-19,031.14-10,427.19

Finding the Fourth Proportional to 13,790.15, 19,031.14 and 10,427.19

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Solution

The fourth proportional to 13,790.15, 19,031.14 and 10,427.19 is: 14,390.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.15 : 19,031.14 = 10,427.19 : x
  2. Step 2: Convert to fraction form
    13,790.15/19,031.14 = 10,427.19/x
  3. Step 3: Cross multiply
    13,790.15x = 19,031.14 × 10,427.19
  4. Step 4: Simplify right side
    13,790.15x = 198,441,286.63
  5. Step 5: Solve for x
    x = 198,441,286.63/13,790.15
  6. Step 6: Final answer
    x = 14,390.07

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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.