Home / 18,870.56-26,040.66-10,487.60

Finding the Fourth Proportional to 18,870.56, 26,040.66 and 10,487.60

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Solution

The fourth proportional to 18,870.56, 26,040.66 and 10,487.60 is: 14,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.56 : 26,040.66 = 10,487.60 : x
  2. Step 2: Convert to fraction form
    18,870.56/26,040.66 = 10,487.60/x
  3. Step 3: Cross multiply
    18,870.56x = 26,040.66 × 10,487.60
  4. Step 4: Simplify right side
    18,870.56x = 273,104,025.82
  5. Step 5: Solve for x
    x = 273,104,025.82/18,870.56
  6. Step 6: Final answer
    x = 14,472.49

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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.