Home / 11,271.81-15,555.15-6,235.95

Finding the Fourth Proportional to 11,271.81, 15,555.15 and 6,235.95

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Solution

The fourth proportional to 11,271.81, 15,555.15 and 6,235.95 is: 8,605.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.81 : 15,555.15 = 6,235.95 : x
  2. Step 2: Convert to fraction form
    11,271.81/15,555.15 = 6,235.95/x
  3. Step 3: Cross multiply
    11,271.81x = 15,555.15 × 6,235.95
  4. Step 4: Simplify right side
    11,271.81x = 97,001,137.64
  5. Step 5: Solve for x
    x = 97,001,137.64/11,271.81
  6. Step 6: Final answer
    x = 8,605.64

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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.