Home / 8,438.80-12,658.47-4,055.35

Finding the Fourth Proportional to 8,438.80, 12,658.47 and 4,055.35

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Solution

The fourth proportional to 8,438.80, 12,658.47 and 4,055.35 is: 6,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.80 : 12,658.47 = 4,055.35 : x
  2. Step 2: Convert to fraction form
    8,438.80/12,658.47 = 4,055.35/x
  3. Step 3: Cross multiply
    8,438.80x = 12,658.47 × 4,055.35
  4. Step 4: Simplify right side
    8,438.80x = 51,334,526.31
  5. Step 5: Solve for x
    x = 51,334,526.31/8,438.80
  6. Step 6: Final answer
    x = 6,083.15

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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.