Home / 15,185.04-20,954.88-8,901.60

Finding the Fourth Proportional to 15,185.04, 20,954.88 and 8,901.60

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Solution

The fourth proportional to 15,185.04, 20,954.88 and 8,901.60 is: 12,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,185.04 : 20,954.88 = 8,901.60 : x
  2. Step 2: Convert to fraction form
    15,185.04/20,954.88 = 8,901.60/x
  3. Step 3: Cross multiply
    15,185.04x = 20,954.88 × 8,901.60
  4. Step 4: Simplify right side
    15,185.04x = 186,531,959.81
  5. Step 5: Solve for x
    x = 186,531,959.81/15,185.04
  6. Step 6: Final answer
    x = 12,283.93

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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.