Home / 13,555.41-18,718.01-8,528.04

Finding the Fourth Proportional to 13,555.41, 18,718.01 and 8,528.04

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Solution

The fourth proportional to 13,555.41, 18,718.01 and 8,528.04 is: 11,775.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.41 : 18,718.01 = 8,528.04 : x
  2. Step 2: Convert to fraction form
    13,555.41/18,718.01 = 8,528.04/x
  3. Step 3: Cross multiply
    13,555.41x = 18,718.01 × 8,528.04
  4. Step 4: Simplify right side
    13,555.41x = 159,627,895.36
  5. Step 5: Solve for x
    x = 159,627,895.36/13,555.41
  6. Step 6: Final answer
    x = 11,775.95

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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.