Home / 7,448.34-10,276.87-4,218.21

Finding the Fourth Proportional to 7,448.34, 10,276.87 and 4,218.21

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Solution

The fourth proportional to 7,448.34, 10,276.87 and 4,218.21 is: 5,820.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.34 : 10,276.87 = 4,218.21 : x
  2. Step 2: Convert to fraction form
    7,448.34/10,276.87 = 4,218.21/x
  3. Step 3: Cross multiply
    7,448.34x = 10,276.87 × 4,218.21
  4. Step 4: Simplify right side
    7,448.34x = 43,349,985.26
  5. Step 5: Solve for x
    x = 43,349,985.26/7,448.34
  6. Step 6: Final answer
    x = 5,820.09

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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.