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Finding the Fourth Proportional to 46,136.60, 69,204.95 and 12,856.76

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Solution

The fourth proportional to 46,136.60, 69,204.95 and 12,856.76 is: 19,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,136.60 : 69,204.95 = 12,856.76 : x
  2. Step 2: Convert to fraction form
    46,136.60/69,204.95 = 12,856.76/x
  3. Step 3: Cross multiply
    46,136.60x = 69,204.95 × 12,856.76
  4. Step 4: Simplify right side
    46,136.60x = 889,751,368.68
  5. Step 5: Solve for x
    x = 889,751,368.68/46,136.60
  6. Step 6: Final answer
    x = 19,285.15

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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.