Home / 13,151.94-19,728.09-4,386.86

Finding the Fourth Proportional to 13,151.94, 19,728.09 and 4,386.86

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Solution

The fourth proportional to 13,151.94, 19,728.09 and 4,386.86 is: 6,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,151.94 : 19,728.09 = 4,386.86 : x
  2. Step 2: Convert to fraction form
    13,151.94/19,728.09 = 4,386.86/x
  3. Step 3: Cross multiply
    13,151.94x = 19,728.09 × 4,386.86
  4. Step 4: Simplify right side
    13,151.94x = 86,544,368.90
  5. Step 5: Solve for x
    x = 86,544,368.90/13,151.94
  6. Step 6: Final answer
    x = 6,580.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.