Home / 15,798.60-21,802.17-8,628.33

Finding the Fourth Proportional to 15,798.60, 21,802.17 and 8,628.33

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Solution

The fourth proportional to 15,798.60, 21,802.17 and 8,628.33 is: 11,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.60 : 21,802.17 = 8,628.33 : x
  2. Step 2: Convert to fraction form
    15,798.60/21,802.17 = 8,628.33/x
  3. Step 3: Cross multiply
    15,798.60x = 21,802.17 × 8,628.33
  4. Step 4: Simplify right side
    15,798.60x = 188,116,317.48
  5. Step 5: Solve for x
    x = 188,116,317.48/15,798.60
  6. Step 6: Final answer
    x = 11,907.15

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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.