Home / 12,855.02-19,287.99-5,461.07

Finding the Fourth Proportional to 12,855.02, 19,287.99 and 5,461.07

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Solution

The fourth proportional to 12,855.02, 19,287.99 and 5,461.07 is: 8,193.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,855.02 : 19,287.99 = 5,461.07 : x
  2. Step 2: Convert to fraction form
    12,855.02/19,287.99 = 5,461.07/x
  3. Step 3: Cross multiply
    12,855.02x = 19,287.99 × 5,461.07
  4. Step 4: Simplify right side
    12,855.02x = 105,333,063.55
  5. Step 5: Solve for x
    x = 105,333,063.55/12,855.02
  6. Step 6: Final answer
    x = 8,193.92

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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.