Home / 9,151-12,621.04-6,317.76

Finding the Fourth Proportional to 9,151, 12,621.04 and 6,317.76

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Solution

The fourth proportional to 9,151, 12,621.04 and 6,317.76 is: 8,713.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151 : 12,621.04 = 6,317.76 : x
  2. Step 2: Convert to fraction form
    9,151/12,621.04 = 6,317.76/x
  3. Step 3: Cross multiply
    9,151x = 12,621.04 × 6,317.76
  4. Step 4: Simplify right side
    9,151x = 79,736,701.67
  5. Step 5: Solve for x
    x = 79,736,701.67/9,151
  6. Step 6: Final answer
    x = 8,713.44

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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.