Home / 13,955.20-19,258.34-7,667.58

Finding the Fourth Proportional to 13,955.20, 19,258.34 and 7,667.58

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Solution

The fourth proportional to 13,955.20, 19,258.34 and 7,667.58 is: 10,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.20 : 19,258.34 = 7,667.58 : x
  2. Step 2: Convert to fraction form
    13,955.20/19,258.34 = 7,667.58/x
  3. Step 3: Cross multiply
    13,955.20x = 19,258.34 × 7,667.58
  4. Step 4: Simplify right side
    13,955.20x = 147,664,862.62
  5. Step 5: Solve for x
    x = 147,664,862.62/13,955.20
  6. Step 6: Final answer
    x = 10,581.35

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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.