Home / 14,749.79-22,128.17-6,431.29

Finding the Fourth Proportional to 14,749.79, 22,128.17 and 6,431.29

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Solution

The fourth proportional to 14,749.79, 22,128.17 and 6,431.29 is: 9,648.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.79 : 22,128.17 = 6,431.29 : x
  2. Step 2: Convert to fraction form
    14,749.79/22,128.17 = 6,431.29/x
  3. Step 3: Cross multiply
    14,749.79x = 22,128.17 × 6,431.29
  4. Step 4: Simplify right side
    14,749.79x = 142,312,590.96
  5. Step 5: Solve for x
    x = 142,312,590.96/14,749.79
  6. Step 6: Final answer
    x = 9,648.45

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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.