Home / 9,285.85-12,815.50-6,101.74

Finding the Fourth Proportional to 9,285.85, 12,815.50 and 6,101.74

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Solution

The fourth proportional to 9,285.85, 12,815.50 and 6,101.74 is: 8,421.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.85 : 12,815.50 = 6,101.74 : x
  2. Step 2: Convert to fraction form
    9,285.85/12,815.50 = 6,101.74/x
  3. Step 3: Cross multiply
    9,285.85x = 12,815.50 × 6,101.74
  4. Step 4: Simplify right side
    9,285.85x = 78,196,848.97
  5. Step 5: Solve for x
    x = 78,196,848.97/9,285.85
  6. Step 6: Final answer
    x = 8,421.08

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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.