Home / 12,731.71-19,095.08-6,404.90

Finding the Fourth Proportional to 12,731.71, 19,095.08 and 6,404.90

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Solution

The fourth proportional to 12,731.71, 19,095.08 and 6,404.90 is: 9,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.71 : 19,095.08 = 6,404.90 : x
  2. Step 2: Convert to fraction form
    12,731.71/19,095.08 = 6,404.90/x
  3. Step 3: Cross multiply
    12,731.71x = 19,095.08 × 6,404.90
  4. Step 4: Simplify right side
    12,731.71x = 122,302,077.89
  5. Step 5: Solve for x
    x = 122,302,077.89/12,731.71
  6. Step 6: Final answer
    x = 9,606.10

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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.