Home / 19,782.48-29,664.16-7,308.38

Finding the Fourth Proportional to 19,782.48, 29,664.16 and 7,308.38

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Solution

The fourth proportional to 19,782.48, 29,664.16 and 7,308.38 is: 10,959.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.48 : 29,664.16 = 7,308.38 : x
  2. Step 2: Convert to fraction form
    19,782.48/29,664.16 = 7,308.38/x
  3. Step 3: Cross multiply
    19,782.48x = 29,664.16 × 7,308.38
  4. Step 4: Simplify right side
    19,782.48x = 216,796,953.66
  5. Step 5: Solve for x
    x = 216,796,953.66/19,782.48
  6. Step 6: Final answer
    x = 10,959.04

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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.