Home / 9,438.30-14,145.30-8,393.40

Finding the Fourth Proportional to 9,438.30, 14,145.30 and 8,393.40

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Solution

The fourth proportional to 9,438.30, 14,145.30 and 8,393.40 is: 12,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.30 : 14,145.30 = 8,393.40 : x
  2. Step 2: Convert to fraction form
    9,438.30/14,145.30 = 8,393.40/x
  3. Step 3: Cross multiply
    9,438.30x = 14,145.30 × 8,393.40
  4. Step 4: Simplify right side
    9,438.30x = 118,727,161.02
  5. Step 5: Solve for x
    x = 118,727,161.02/9,438.30
  6. Step 6: Final answer
    x = 12,579.30

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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.