Home / 12,276.06-18,417.18-4,878.06

Finding the Fourth Proportional to 12,276.06, 18,417.18 and 4,878.06

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Solution

The fourth proportional to 12,276.06, 18,417.18 and 4,878.06 is: 7,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.06 : 18,417.18 = 4,878.06 : x
  2. Step 2: Convert to fraction form
    12,276.06/18,417.18 = 4,878.06/x
  3. Step 3: Cross multiply
    12,276.06x = 18,417.18 × 4,878.06
  4. Step 4: Simplify right side
    12,276.06x = 89,840,109.07
  5. Step 5: Solve for x
    x = 89,840,109.07/12,276.06
  6. Step 6: Final answer
    x = 7,318.32

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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.