Home / 15,762.24-21,749.43-10,102.08

Finding the Fourth Proportional to 15,762.24, 21,749.43 and 10,102.08

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Solution

The fourth proportional to 15,762.24, 21,749.43 and 10,102.08 is: 13,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762.24 : 21,749.43 = 10,102.08 : x
  2. Step 2: Convert to fraction form
    15,762.24/21,749.43 = 10,102.08/x
  3. Step 3: Cross multiply
    15,762.24x = 21,749.43 × 10,102.08
  4. Step 4: Simplify right side
    15,762.24x = 219,714,481.81
  5. Step 5: Solve for x
    x = 219,714,481.81/15,762.24
  6. Step 6: Final answer
    x = 13,939.29

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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.