Home / 12,078.04-18,106.60-4,677.40

Finding the Fourth Proportional to 12,078.04, 18,106.60 and 4,677.40

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Solution

The fourth proportional to 12,078.04, 18,106.60 and 4,677.40 is: 7,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,078.04 : 18,106.60 = 4,677.40 : x
  2. Step 2: Convert to fraction form
    12,078.04/18,106.60 = 4,677.40/x
  3. Step 3: Cross multiply
    12,078.04x = 18,106.60 × 4,677.40
  4. Step 4: Simplify right side
    12,078.04x = 84,691,810.84
  5. Step 5: Solve for x
    x = 84,691,810.84/12,078.04
  6. Step 6: Final answer
    x = 7,012.05

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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.