Home / 15,038.06-20,747.75-8,749.22

Finding the Fourth Proportional to 15,038.06, 20,747.75 and 8,749.22

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Solution

The fourth proportional to 15,038.06, 20,747.75 and 8,749.22 is: 12,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,038.06 : 20,747.75 = 8,749.22 : x
  2. Step 2: Convert to fraction form
    15,038.06/20,747.75 = 8,749.22/x
  3. Step 3: Cross multiply
    15,038.06x = 20,747.75 × 8,749.22
  4. Step 4: Simplify right side
    15,038.06x = 181,526,481.77
  5. Step 5: Solve for x
    x = 181,526,481.77/15,038.06
  6. Step 6: Final answer
    x = 12,071.14

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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.