Home / 9,368.79-14,054.87-3,128.19

Finding the Fourth Proportional to 9,368.79, 14,054.87 and 3,128.19

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Solution

The fourth proportional to 9,368.79, 14,054.87 and 3,128.19 is: 4,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,368.79 : 14,054.87 = 3,128.19 : x
  2. Step 2: Convert to fraction form
    9,368.79/14,054.87 = 3,128.19/x
  3. Step 3: Cross multiply
    9,368.79x = 14,054.87 × 3,128.19
  4. Step 4: Simplify right side
    9,368.79x = 43,966,311.61
  5. Step 5: Solve for x
    x = 43,966,311.61/9,368.79
  6. Step 6: Final answer
    x = 4,692.85

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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.