Home / 13,862.76-19,130.49-8,558.88

Finding the Fourth Proportional to 13,862.76, 19,130.49 and 8,558.88

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Solution

The fourth proportional to 13,862.76, 19,130.49 and 8,558.88 is: 11,811.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,862.76 : 19,130.49 = 8,558.88 : x
  2. Step 2: Convert to fraction form
    13,862.76/19,130.49 = 8,558.88/x
  3. Step 3: Cross multiply
    13,862.76x = 19,130.49 × 8,558.88
  4. Step 4: Simplify right side
    13,862.76x = 163,735,568.25
  5. Step 5: Solve for x
    x = 163,735,568.25/13,862.76
  6. Step 6: Final answer
    x = 11,811.18

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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.