Home / 13,955.34-19,258.38-7,581.81

Finding the Fourth Proportional to 13,955.34, 19,258.38 and 7,581.81

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Solution

The fourth proportional to 13,955.34, 19,258.38 and 7,581.81 is: 10,462.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.34 : 19,258.38 = 7,581.81 : x
  2. Step 2: Convert to fraction form
    13,955.34/19,258.38 = 7,581.81/x
  3. Step 3: Cross multiply
    13,955.34x = 19,258.38 × 7,581.81
  4. Step 4: Simplify right side
    13,955.34x = 146,013,378.07
  5. Step 5: Solve for x
    x = 146,013,378.07/13,955.34
  6. Step 6: Final answer
    x = 10,462.90

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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.