Home / 11,903.79-16,427.31-6,868.23

Finding the Fourth Proportional to 11,903.79, 16,427.31 and 6,868.23

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Solution

The fourth proportional to 11,903.79, 16,427.31 and 6,868.23 is: 9,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,903.79 : 16,427.31 = 6,868.23 : x
  2. Step 2: Convert to fraction form
    11,903.79/16,427.31 = 6,868.23/x
  3. Step 3: Cross multiply
    11,903.79x = 16,427.31 × 6,868.23
  4. Step 4: Simplify right side
    11,903.79x = 112,826,543.36
  5. Step 5: Solve for x
    x = 112,826,543.36/11,903.79
  6. Step 6: Final answer
    x = 9,478.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.