Home / 9,000.28-12,422.67-5,370.23

Finding the Fourth Proportional to 9,000.28, 12,422.67 and 5,370.23

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Solution

The fourth proportional to 9,000.28, 12,422.67 and 5,370.23 is: 7,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.28 : 12,422.67 = 5,370.23 : x
  2. Step 2: Convert to fraction form
    9,000.28/12,422.67 = 5,370.23/x
  3. Step 3: Cross multiply
    9,000.28x = 12,422.67 × 5,370.23
  4. Step 4: Simplify right side
    9,000.28x = 66,712,606.03
  5. Step 5: Solve for x
    x = 66,712,606.03/9,000.28
  6. Step 6: Final answer
    x = 7,412.28

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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.