Home / 11,670.51-17,501.47-4,272.78

Finding the Fourth Proportional to 11,670.51, 17,501.47 and 4,272.78

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Solution

The fourth proportional to 11,670.51, 17,501.47 and 4,272.78 is: 6,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.51 : 17,501.47 = 4,272.78 : x
  2. Step 2: Convert to fraction form
    11,670.51/17,501.47 = 4,272.78/x
  3. Step 3: Cross multiply
    11,670.51x = 17,501.47 × 4,272.78
  4. Step 4: Simplify right side
    11,670.51x = 74,779,930.99
  5. Step 5: Solve for x
    x = 74,779,930.99/11,670.51
  6. Step 6: Final answer
    x = 6,407.60

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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.