Home / 9,317.94-12,858.90-5,339.40

Finding the Fourth Proportional to 9,317.94, 12,858.90 and 5,339.40

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Solution

The fourth proportional to 9,317.94, 12,858.90 and 5,339.40 is: 7,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,317.94 : 12,858.90 = 5,339.40 : x
  2. Step 2: Convert to fraction form
    9,317.94/12,858.90 = 5,339.40/x
  3. Step 3: Cross multiply
    9,317.94x = 12,858.90 × 5,339.40
  4. Step 4: Simplify right side
    9,317.94x = 68,658,810.66
  5. Step 5: Solve for x
    x = 68,658,810.66/9,317.94
  6. Step 6: Final answer
    x = 7,368.45

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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.