Home / 18,237.64-25,188.70-12,258.93

Finding the Fourth Proportional to 18,237.64, 25,188.70 and 12,258.93

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Solution

The fourth proportional to 18,237.64, 25,188.70 and 12,258.93 is: 16,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.64 : 25,188.70 = 12,258.93 : x
  2. Step 2: Convert to fraction form
    18,237.64/25,188.70 = 12,258.93/x
  3. Step 3: Cross multiply
    18,237.64x = 25,188.70 × 12,258.93
  4. Step 4: Simplify right side
    18,237.64x = 308,786,510.09
  5. Step 5: Solve for x
    x = 308,786,510.09/18,237.64
  6. Step 6: Final answer
    x = 16,931.28

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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.