Home / 14,328.51-19,788.35-9,863.79

Finding the Fourth Proportional to 14,328.51, 19,788.35 and 9,863.79

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Solution

The fourth proportional to 14,328.51, 19,788.35 and 9,863.79 is: 13,622.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328.51 : 19,788.35 = 9,863.79 : x
  2. Step 2: Convert to fraction form
    14,328.51/19,788.35 = 9,863.79/x
  3. Step 3: Cross multiply
    14,328.51x = 19,788.35 × 9,863.79
  4. Step 4: Simplify right side
    14,328.51x = 195,188,079.53
  5. Step 5: Solve for x
    x = 195,188,079.53/14,328.51
  6. Step 6: Final answer
    x = 13,622.36

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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.