Home / 19,128.04-28,696.68-6,646.25

Finding the Fourth Proportional to 19,128.04, 28,696.68 and 6,646.25

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Solution

The fourth proportional to 19,128.04, 28,696.68 and 6,646.25 is: 9,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.04 : 28,696.68 = 6,646.25 : x
  2. Step 2: Convert to fraction form
    19,128.04/28,696.68 = 6,646.25/x
  3. Step 3: Cross multiply
    19,128.04x = 28,696.68 × 6,646.25
  4. Step 4: Simplify right side
    19,128.04x = 190,725,309.45
  5. Step 5: Solve for x
    x = 190,725,309.45/19,128.04
  6. Step 6: Final answer
    x = 9,970.98

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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.