Home / 15,927.48-21,979.97-8,853.93

Finding the Fourth Proportional to 15,927.48, 21,979.97 and 8,853.93

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Solution

The fourth proportional to 15,927.48, 21,979.97 and 8,853.93 is: 12,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,927.48 : 21,979.97 = 8,853.93 : x
  2. Step 2: Convert to fraction form
    15,927.48/21,979.97 = 8,853.93/x
  3. Step 3: Cross multiply
    15,927.48x = 21,979.97 × 8,853.93
  4. Step 4: Simplify right side
    15,927.48x = 194,609,071.51
  5. Step 5: Solve for x
    x = 194,609,071.51/15,927.48
  6. Step 6: Final answer
    x = 12,218.45

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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.