Home / 13,045.52-19,519.80-7,783.36

Finding the Fourth Proportional to 13,045.52, 19,519.80 and 7,783.36

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Solution

The fourth proportional to 13,045.52, 19,519.80 and 7,783.36 is: 11,646.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.52 : 19,519.80 = 7,783.36 : x
  2. Step 2: Convert to fraction form
    13,045.52/19,519.80 = 7,783.36/x
  3. Step 3: Cross multiply
    13,045.52x = 19,519.80 × 7,783.36
  4. Step 4: Simplify right side
    13,045.52x = 151,929,630.53
  5. Step 5: Solve for x
    x = 151,929,630.53/13,045.52
  6. Step 6: Final answer
    x = 11,646.12

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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.