Home / 14,271.81-21,407.31-5,508.63

Finding the Fourth Proportional to 14,271.81, 21,407.31 and 5,508.63

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Solution

The fourth proportional to 14,271.81, 21,407.31 and 5,508.63 is: 8,262.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,271.81 : 21,407.31 = 5,508.63 : x
  2. Step 2: Convert to fraction form
    14,271.81/21,407.31 = 5,508.63/x
  3. Step 3: Cross multiply
    14,271.81x = 21,407.31 × 5,508.63
  4. Step 4: Simplify right side
    14,271.81x = 117,924,950.09
  5. Step 5: Solve for x
    x = 117,924,950.09/14,271.81
  6. Step 6: Final answer
    x = 8,262.79

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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.