Home / 14,309.40-19,749.18-8,343

Finding the Fourth Proportional to 14,309.40, 19,749.18 and 8,343

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Solution

The fourth proportional to 14,309.40, 19,749.18 and 8,343 is: 11,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,309.40 : 19,749.18 = 8,343 : x
  2. Step 2: Convert to fraction form
    14,309.40/19,749.18 = 8,343/x
  3. Step 3: Cross multiply
    14,309.40x = 19,749.18 × 8,343
  4. Step 4: Simplify right side
    14,309.40x = 164,767,408.74
  5. Step 5: Solve for x
    x = 164,767,408.74/14,309.40
  6. Step 6: Final answer
    x = 11,514.63

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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.