Home / 12,898.98-19,355.76-4,136.40

Finding the Fourth Proportional to 12,898.98, 19,355.76 and 4,136.40

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Solution

The fourth proportional to 12,898.98, 19,355.76 and 4,136.40 is: 6,206.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.98 : 19,355.76 = 4,136.40 : x
  2. Step 2: Convert to fraction form
    12,898.98/19,355.76 = 4,136.40/x
  3. Step 3: Cross multiply
    12,898.98x = 19,355.76 × 4,136.40
  4. Step 4: Simplify right side
    12,898.98x = 80,063,165.66
  5. Step 5: Solve for x
    x = 80,063,165.66/12,898.98
  6. Step 6: Final answer
    x = 6,206.94

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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.