Home / 13,258.71-19,888.22-3,898.91

Finding the Fourth Proportional to 13,258.71, 19,888.22 and 3,898.91

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Solution

The fourth proportional to 13,258.71, 19,888.22 and 3,898.91 is: 5,848.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.71 : 19,888.22 = 3,898.91 : x
  2. Step 2: Convert to fraction form
    13,258.71/19,888.22 = 3,898.91/x
  3. Step 3: Cross multiply
    13,258.71x = 19,888.22 × 3,898.91
  4. Step 4: Simplify right side
    13,258.71x = 77,542,410.07
  5. Step 5: Solve for x
    x = 77,542,410.07/13,258.71
  6. Step 6: Final answer
    x = 5,848.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.