Home / 9,271.74-12,807.27-6,909.78

Finding the Fourth Proportional to 9,271.74, 12,807.27 and 6,909.78

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Solution

The fourth proportional to 9,271.74, 12,807.27 and 6,909.78 is: 9,544.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.74 : 12,807.27 = 6,909.78 : x
  2. Step 2: Convert to fraction form
    9,271.74/12,807.27 = 6,909.78/x
  3. Step 3: Cross multiply
    9,271.74x = 12,807.27 × 6,909.78
  4. Step 4: Simplify right side
    9,271.74x = 88,495,418.10
  5. Step 5: Solve for x
    x = 88,495,418.10/9,271.74
  6. Step 6: Final answer
    x = 9,544.64

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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.