Home / 18,407.37-25,398.69-10,856.07

Finding the Fourth Proportional to 18,407.37, 25,398.69 and 10,856.07

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Solution

The fourth proportional to 18,407.37, 25,398.69 and 10,856.07 is: 14,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.37 : 25,398.69 = 10,856.07 : x
  2. Step 2: Convert to fraction form
    18,407.37/25,398.69 = 10,856.07/x
  3. Step 3: Cross multiply
    18,407.37x = 25,398.69 × 10,856.07
  4. Step 4: Simplify right side
    18,407.37x = 275,729,956.55
  5. Step 5: Solve for x
    x = 275,729,956.55/18,407.37
  6. Step 6: Final answer
    x = 14,979.32

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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.