Home / 13,386.33-18,472.86-7,417.95

Finding the Fourth Proportional to 13,386.33, 18,472.86 and 7,417.95

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Solution

The fourth proportional to 13,386.33, 18,472.86 and 7,417.95 is: 10,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.33 : 18,472.86 = 7,417.95 : x
  2. Step 2: Convert to fraction form
    13,386.33/18,472.86 = 7,417.95/x
  3. Step 3: Cross multiply
    13,386.33x = 18,472.86 × 7,417.95
  4. Step 4: Simplify right side
    13,386.33x = 137,030,682.56
  5. Step 5: Solve for x
    x = 137,030,682.56/13,386.33
  6. Step 6: Final answer
    x = 10,236.61

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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.