Home / 9,877.95-13,621.21-6,516.35

Finding the Fourth Proportional to 9,877.95, 13,621.21 and 6,516.35

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Solution

The fourth proportional to 9,877.95, 13,621.21 and 6,516.35 is: 8,985.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,877.95 : 13,621.21 = 6,516.35 : x
  2. Step 2: Convert to fraction form
    9,877.95/13,621.21 = 6,516.35/x
  3. Step 3: Cross multiply
    9,877.95x = 13,621.21 × 6,516.35
  4. Step 4: Simplify right side
    9,877.95x = 88,760,575.12
  5. Step 5: Solve for x
    x = 88,760,575.12/9,877.95
  6. Step 6: Final answer
    x = 8,985.73

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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.