Home / 12,618.02-18,902.77-7,054.49

Finding the Fourth Proportional to 12,618.02, 18,902.77 and 7,054.49

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Solution

The fourth proportional to 12,618.02, 18,902.77 and 7,054.49 is: 10,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.02 : 18,902.77 = 7,054.49 : x
  2. Step 2: Convert to fraction form
    12,618.02/18,902.77 = 7,054.49/x
  3. Step 3: Cross multiply
    12,618.02x = 18,902.77 × 7,054.49
  4. Step 4: Simplify right side
    12,618.02x = 133,349,410.76
  5. Step 5: Solve for x
    x = 133,349,410.76/12,618.02
  6. Step 6: Final answer
    x = 10,568.17

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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.