Home / 9,378.81-12,948.66-6,022.98

Finding the Fourth Proportional to 9,378.81, 12,948.66 and 6,022.98

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Solution

The fourth proportional to 9,378.81, 12,948.66 and 6,022.98 is: 8,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.81 : 12,948.66 = 6,022.98 : x
  2. Step 2: Convert to fraction form
    9,378.81/12,948.66 = 6,022.98/x
  3. Step 3: Cross multiply
    9,378.81x = 12,948.66 × 6,022.98
  4. Step 4: Simplify right side
    9,378.81x = 77,989,520.21
  5. Step 5: Solve for x
    x = 77,989,520.21/9,378.81
  6. Step 6: Final answer
    x = 8,315.50

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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.