Home / 14,459.90-19,954.70-8,086.72

Finding the Fourth Proportional to 14,459.90, 19,954.70 and 8,086.72

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Solution

The fourth proportional to 14,459.90, 19,954.70 and 8,086.72 is: 11,159.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,459.90 : 19,954.70 = 8,086.72 : x
  2. Step 2: Convert to fraction form
    14,459.90/19,954.70 = 8,086.72/x
  3. Step 3: Cross multiply
    14,459.90x = 19,954.70 × 8,086.72
  4. Step 4: Simplify right side
    14,459.90x = 161,368,071.58
  5. Step 5: Solve for x
    x = 161,368,071.58/14,459.90
  6. Step 6: Final answer
    x = 11,159.69

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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.