Home / 9,328.28-12,868.98-5,348.48

Finding the Fourth Proportional to 9,328.28, 12,868.98 and 5,348.48

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Solution

The fourth proportional to 9,328.28, 12,868.98 and 5,348.48 is: 7,378.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,328.28 : 12,868.98 = 5,348.48 : x
  2. Step 2: Convert to fraction form
    9,328.28/12,868.98 = 5,348.48/x
  3. Step 3: Cross multiply
    9,328.28x = 12,868.98 × 5,348.48
  4. Step 4: Simplify right side
    9,328.28x = 68,829,482.15
  5. Step 5: Solve for x
    x = 68,829,482.15/9,328.28
  6. Step 6: Final answer
    x = 7,378.58

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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.