Home / 13,753.04-18,985.80-9,782.48

Finding the Fourth Proportional to 13,753.04, 18,985.80 and 9,782.48

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Solution

The fourth proportional to 13,753.04, 18,985.80 and 9,782.48 is: 13,504.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.04 : 18,985.80 = 9,782.48 : x
  2. Step 2: Convert to fraction form
    13,753.04/18,985.80 = 9,782.48/x
  3. Step 3: Cross multiply
    13,753.04x = 18,985.80 × 9,782.48
  4. Step 4: Simplify right side
    13,753.04x = 185,728,208.78
  5. Step 5: Solve for x
    x = 185,728,208.78/13,753.04
  6. Step 6: Final answer
    x = 13,504.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.