Home / 19,887.44-29,842.79-7,416.08

Finding the Fourth Proportional to 19,887.44, 29,842.79 and 7,416.08

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Solution

The fourth proportional to 19,887.44, 29,842.79 and 7,416.08 is: 11,128.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,887.44 : 29,842.79 = 7,416.08 : x
  2. Step 2: Convert to fraction form
    19,887.44/29,842.79 = 7,416.08/x
  3. Step 3: Cross multiply
    19,887.44x = 29,842.79 × 7,416.08
  4. Step 4: Simplify right side
    19,887.44x = 221,316,331.77
  5. Step 5: Solve for x
    x = 221,316,331.77/19,887.44
  6. Step 6: Final answer
    x = 11,128.45

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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.