Home / 12,355.02-18,509.31-6,107.76

Finding the Fourth Proportional to 12,355.02, 18,509.31 and 6,107.76

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Solution

The fourth proportional to 12,355.02, 18,509.31 and 6,107.76 is: 9,150.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.02 : 18,509.31 = 6,107.76 : x
  2. Step 2: Convert to fraction form
    12,355.02/18,509.31 = 6,107.76/x
  3. Step 3: Cross multiply
    12,355.02x = 18,509.31 × 6,107.76
  4. Step 4: Simplify right side
    12,355.02x = 113,050,423.25
  5. Step 5: Solve for x
    x = 113,050,423.25/12,355.02
  6. Step 6: Final answer
    x = 9,150.16

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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.