Home / 15,799.45-21,802.14-8,725.31

Finding the Fourth Proportional to 15,799.45, 21,802.14 and 8,725.31

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Solution

The fourth proportional to 15,799.45, 21,802.14 and 8,725.31 is: 12,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,799.45 : 21,802.14 = 8,725.31 : x
  2. Step 2: Convert to fraction form
    15,799.45/21,802.14 = 8,725.31/x
  3. Step 3: Cross multiply
    15,799.45x = 21,802.14 × 8,725.31
  4. Step 4: Simplify right side
    15,799.45x = 190,230,430.16
  5. Step 5: Solve for x
    x = 190,230,430.16/15,799.45
  6. Step 6: Final answer
    x = 12,040.32

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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.