Home / 18,853.32-26,018.64-10,355.88

Finding the Fourth Proportional to 18,853.32, 26,018.64 and 10,355.88

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Solution

The fourth proportional to 18,853.32, 26,018.64 and 10,355.88 is: 14,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.32 : 26,018.64 = 10,355.88 : x
  2. Step 2: Convert to fraction form
    18,853.32/26,018.64 = 10,355.88/x
  3. Step 3: Cross multiply
    18,853.32x = 26,018.64 × 10,355.88
  4. Step 4: Simplify right side
    18,853.32x = 269,445,913.60
  5. Step 5: Solve for x
    x = 269,445,913.60/18,853.32
  6. Step 6: Final answer
    x = 14,291.70

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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.