Home / 12,985.52-19,485.56-5,194.94

Finding the Fourth Proportional to 12,985.52, 19,485.56 and 5,194.94

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Solution

The fourth proportional to 12,985.52, 19,485.56 and 5,194.94 is: 7,795.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985.52 : 19,485.56 = 5,194.94 : x
  2. Step 2: Convert to fraction form
    12,985.52/19,485.56 = 5,194.94/x
  3. Step 3: Cross multiply
    12,985.52x = 19,485.56 × 5,194.94
  4. Step 4: Simplify right side
    12,985.52x = 101,226,230.63
  5. Step 5: Solve for x
    x = 101,226,230.63/12,985.52
  6. Step 6: Final answer
    x = 7,795.32

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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.