Home / 9,139.15-13,700.44-3,291.63

Finding the Fourth Proportional to 9,139.15, 13,700.44 and 3,291.63

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Solution

The fourth proportional to 9,139.15, 13,700.44 and 3,291.63 is: 4,934.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,139.15 : 13,700.44 = 3,291.63 : x
  2. Step 2: Convert to fraction form
    9,139.15/13,700.44 = 3,291.63/x
  3. Step 3: Cross multiply
    9,139.15x = 13,700.44 × 3,291.63
  4. Step 4: Simplify right side
    9,139.15x = 45,096,779.32
  5. Step 5: Solve for x
    x = 45,096,779.32/9,139.15
  6. Step 6: Final answer
    x = 4,934.46

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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.