Home / 9,188.99-12,681.09-5,210.27

Finding the Fourth Proportional to 9,188.99, 12,681.09 and 5,210.27

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Solution

The fourth proportional to 9,188.99, 12,681.09 and 5,210.27 is: 7,190.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,188.99 : 12,681.09 = 5,210.27 : x
  2. Step 2: Convert to fraction form
    9,188.99/12,681.09 = 5,210.27/x
  3. Step 3: Cross multiply
    9,188.99x = 12,681.09 × 5,210.27
  4. Step 4: Simplify right side
    9,188.99x = 66,071,902.79
  5. Step 5: Solve for x
    x = 66,071,902.79/9,188.99
  6. Step 6: Final answer
    x = 7,190.33

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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.