Home / 7,287.45-10,056.77-4,143.63

Finding the Fourth Proportional to 7,287.45, 10,056.77 and 4,143.63

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Solution

The fourth proportional to 7,287.45, 10,056.77 and 4,143.63 is: 5,718.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.45 : 10,056.77 = 4,143.63 : x
  2. Step 2: Convert to fraction form
    7,287.45/10,056.77 = 4,143.63/x
  3. Step 3: Cross multiply
    7,287.45x = 10,056.77 × 4,143.63
  4. Step 4: Simplify right side
    7,287.45x = 41,671,533.88
  5. Step 5: Solve for x
    x = 41,671,533.88/7,287.45
  6. Step 6: Final answer
    x = 5,718.26

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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.