Home / 9,137.90-13,686.30-5,570.33

Finding the Fourth Proportional to 9,137.90, 13,686.30 and 5,570.33

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Solution

The fourth proportional to 9,137.90, 13,686.30 and 5,570.33 is: 8,342.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.90 : 13,686.30 = 5,570.33 : x
  2. Step 2: Convert to fraction form
    9,137.90/13,686.30 = 5,570.33/x
  3. Step 3: Cross multiply
    9,137.90x = 13,686.30 × 5,570.33
  4. Step 4: Simplify right side
    9,137.90x = 76,237,139.05
  5. Step 5: Solve for x
    x = 76,237,139.05/9,137.90
  6. Step 6: Final answer
    x = 8,342.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.