Home / 9,312.72-13,969.20-2,739.05

Finding the Fourth Proportional to 9,312.72, 13,969.20 and 2,739.05

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Solution

The fourth proportional to 9,312.72, 13,969.20 and 2,739.05 is: 4,108.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.72 : 13,969.20 = 2,739.05 : x
  2. Step 2: Convert to fraction form
    9,312.72/13,969.20 = 2,739.05/x
  3. Step 3: Cross multiply
    9,312.72x = 13,969.20 × 2,739.05
  4. Step 4: Simplify right side
    9,312.72x = 38,262,267.41
  5. Step 5: Solve for x
    x = 38,262,267.41/9,312.72
  6. Step 6: Final answer
    x = 4,108.60

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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.