Home / 11,316.94-15,615.58-6,281.05

Finding the Fourth Proportional to 11,316.94, 15,615.58 and 6,281.05

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Solution

The fourth proportional to 11,316.94, 15,615.58 and 6,281.05 is: 8,666.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.94 : 15,615.58 = 6,281.05 : x
  2. Step 2: Convert to fraction form
    11,316.94/15,615.58 = 6,281.05/x
  3. Step 3: Cross multiply
    11,316.94x = 15,615.58 × 6,281.05
  4. Step 4: Simplify right side
    11,316.94x = 98,082,184.02
  5. Step 5: Solve for x
    x = 98,082,184.02/11,316.94
  6. Step 6: Final answer
    x = 8,666.85

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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.