Home / 9,307.40-12,840.57-5,326.38

Finding the Fourth Proportional to 9,307.40, 12,840.57 and 5,326.38

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Solution

The fourth proportional to 9,307.40, 12,840.57 and 5,326.38 is: 7,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,307.40 : 12,840.57 = 5,326.38 : x
  2. Step 2: Convert to fraction form
    9,307.40/12,840.57 = 5,326.38/x
  3. Step 3: Cross multiply
    9,307.40x = 12,840.57 × 5,326.38
  4. Step 4: Simplify right side
    9,307.40x = 68,393,755.24
  5. Step 5: Solve for x
    x = 68,393,755.24/9,307.40
  6. Step 6: Final answer
    x = 7,348.32

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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.