Home / 13,977.34-19,316.40-11,455.46

Finding the Fourth Proportional to 13,977.34, 19,316.40 and 11,455.46

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Solution

The fourth proportional to 13,977.34, 19,316.40 and 11,455.46 is: 15,831.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.34 : 19,316.40 = 11,455.46 : x
  2. Step 2: Convert to fraction form
    13,977.34/19,316.40 = 11,455.46/x
  3. Step 3: Cross multiply
    13,977.34x = 19,316.40 × 11,455.46
  4. Step 4: Simplify right side
    13,977.34x = 221,278,247.54
  5. Step 5: Solve for x
    x = 221,278,247.54/13,977.34
  6. Step 6: Final answer
    x = 15,831.21

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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.