Home / 8,721.23-12,035.25-4,742.33

Finding the Fourth Proportional to 8,721.23, 12,035.25 and 4,742.33

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Solution

The fourth proportional to 8,721.23, 12,035.25 and 4,742.33 is: 6,544.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.23 : 12,035.25 = 4,742.33 : x
  2. Step 2: Convert to fraction form
    8,721.23/12,035.25 = 4,742.33/x
  3. Step 3: Cross multiply
    8,721.23x = 12,035.25 × 4,742.33
  4. Step 4: Simplify right side
    8,721.23x = 57,075,066.96
  5. Step 5: Solve for x
    x = 57,075,066.96/8,721.23
  6. Step 6: Final answer
    x = 6,544.39

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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.