Home / 7,138.06-9,852.51-4,154.47

Finding the Fourth Proportional to 7,138.06, 9,852.51 and 4,154.47

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Solution

The fourth proportional to 7,138.06, 9,852.51 and 4,154.47 is: 5,734.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.06 : 9,852.51 = 4,154.47 : x
  2. Step 2: Convert to fraction form
    7,138.06/9,852.51 = 4,154.47/x
  3. Step 3: Cross multiply
    7,138.06x = 9,852.51 × 4,154.47
  4. Step 4: Simplify right side
    7,138.06x = 40,931,907.96
  5. Step 5: Solve for x
    x = 40,931,907.96/7,138.06
  6. Step 6: Final answer
    x = 5,734.32

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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.