Home / 10,192.81-15,290.74-3,618.45

Finding the Fourth Proportional to 10,192.81, 15,290.74 and 3,618.45

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Solution

The fourth proportional to 10,192.81, 15,290.74 and 3,618.45 is: 5,428.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,192.81 : 15,290.74 = 3,618.45 : x
  2. Step 2: Convert to fraction form
    10,192.81/15,290.74 = 3,618.45/x
  3. Step 3: Cross multiply
    10,192.81x = 15,290.74 × 3,618.45
  4. Step 4: Simplify right side
    10,192.81x = 55,328,701.70
  5. Step 5: Solve for x
    x = 55,328,701.70/10,192.81
  6. Step 6: Final answer
    x = 5,428.21

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1.5x scale

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.