Home / 14,290.51-19,719.30-8,321.62

Finding the Fourth Proportional to 14,290.51, 19,719.30 and 8,321.62

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Solution

The fourth proportional to 14,290.51, 19,719.30 and 8,321.62 is: 11,482.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.51 : 19,719.30 = 8,321.62 : x
  2. Step 2: Convert to fraction form
    14,290.51/19,719.30 = 8,321.62/x
  3. Step 3: Cross multiply
    14,290.51x = 19,719.30 × 8,321.62
  4. Step 4: Simplify right side
    14,290.51x = 164,096,521.27
  5. Step 5: Solve for x
    x = 164,096,521.27/14,290.51
  6. Step 6: Final answer
    x = 11,482.90

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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.