Home / 19,648.44-29,461.59-9,128.97

Finding the Fourth Proportional to 19,648.44, 29,461.59 and 9,128.97

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Solution

The fourth proportional to 19,648.44, 29,461.59 and 9,128.97 is: 13,688.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.44 : 29,461.59 = 9,128.97 : x
  2. Step 2: Convert to fraction form
    19,648.44/29,461.59 = 9,128.97/x
  3. Step 3: Cross multiply
    19,648.44x = 29,461.59 × 9,128.97
  4. Step 4: Simplify right side
    19,648.44x = 268,953,971.26
  5. Step 5: Solve for x
    x = 268,953,971.26/19,648.44
  6. Step 6: Final answer
    x = 13,688.31

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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.