Home / 9,403.36-12,975.95-5,153.74

Finding the Fourth Proportional to 9,403.36, 12,975.95 and 5,153.74

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Solution

The fourth proportional to 9,403.36, 12,975.95 and 5,153.74 is: 7,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.36 : 12,975.95 = 5,153.74 : x
  2. Step 2: Convert to fraction form
    9,403.36/12,975.95 = 5,153.74/x
  3. Step 3: Cross multiply
    9,403.36x = 12,975.95 × 5,153.74
  4. Step 4: Simplify right side
    9,403.36x = 66,874,653.00
  5. Step 5: Solve for x
    x = 66,874,653.00/9,403.36
  6. Step 6: Final answer
    x = 7,111.78

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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.