Home / 18,386.81-25,372.73-10,319.72

Finding the Fourth Proportional to 18,386.81, 25,372.73 and 10,319.72

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Solution

The fourth proportional to 18,386.81, 25,372.73 and 10,319.72 is: 14,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.81 : 25,372.73 = 10,319.72 : x
  2. Step 2: Convert to fraction form
    18,386.81/25,372.73 = 10,319.72/x
  3. Step 3: Cross multiply
    18,386.81x = 25,372.73 × 10,319.72
  4. Step 4: Simplify right side
    18,386.81x = 261,839,290.77
  5. Step 5: Solve for x
    x = 261,839,290.77/18,386.81
  6. Step 6: Final answer
    x = 14,240.60

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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.