Home / 12,912.16-19,368.68-4,592.08

Finding the Fourth Proportional to 12,912.16, 19,368.68 and 4,592.08

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Solution

The fourth proportional to 12,912.16, 19,368.68 and 4,592.08 is: 6,888.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912.16 : 19,368.68 = 4,592.08 : x
  2. Step 2: Convert to fraction form
    12,912.16/19,368.68 = 4,592.08/x
  3. Step 3: Cross multiply
    12,912.16x = 19,368.68 × 4,592.08
  4. Step 4: Simplify right side
    12,912.16x = 88,942,528.05
  5. Step 5: Solve for x
    x = 88,942,528.05/12,912.16
  6. Step 6: Final answer
    x = 6,888.28

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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.