Home / 12,731.90-19,102.30-4,946.18

Finding the Fourth Proportional to 12,731.90, 19,102.30 and 4,946.18

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Solution

The fourth proportional to 12,731.90, 19,102.30 and 4,946.18 is: 7,420.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,731.90 : 19,102.30 = 4,946.18 : x
  2. Step 2: Convert to fraction form
    12,731.90/19,102.30 = 4,946.18/x
  3. Step 3: Cross multiply
    12,731.90x = 19,102.30 × 4,946.18
  4. Step 4: Simplify right side
    12,731.90x = 94,483,306.34
  5. Step 5: Solve for x
    x = 94,483,306.34/12,731.90
  6. Step 6: Final answer
    x = 7,420.99

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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.