Home / 12,145.77-18,208.35-4,748.24

Finding the Fourth Proportional to 12,145.77, 18,208.35 and 4,748.24

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Solution

The fourth proportional to 12,145.77, 18,208.35 and 4,748.24 is: 7,118.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.77 : 18,208.35 = 4,748.24 : x
  2. Step 2: Convert to fraction form
    12,145.77/18,208.35 = 4,748.24/x
  3. Step 3: Cross multiply
    12,145.77x = 18,208.35 × 4,748.24
  4. Step 4: Simplify right side
    12,145.77x = 86,457,661.32
  5. Step 5: Solve for x
    x = 86,457,661.32/12,145.77
  6. Step 6: Final answer
    x = 7,118.34

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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.