Home / 11,345.94-15,643.84-7,365.60

Finding the Fourth Proportional to 11,345.94, 15,643.84 and 7,365.60

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Solution

The fourth proportional to 11,345.94, 15,643.84 and 7,365.60 is: 10,155.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.94 : 15,643.84 = 7,365.60 : x
  2. Step 2: Convert to fraction form
    11,345.94/15,643.84 = 7,365.60/x
  3. Step 3: Cross multiply
    11,345.94x = 15,643.84 × 7,365.60
  4. Step 4: Simplify right side
    11,345.94x = 115,226,267.90
  5. Step 5: Solve for x
    x = 115,226,267.90/11,345.94
  6. Step 6: Final answer
    x = 10,155.73

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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.