Home / 13,701.04-18,888.60-8,662.74

Finding the Fourth Proportional to 13,701.04, 18,888.60 and 8,662.74

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Solution

The fourth proportional to 13,701.04, 18,888.60 and 8,662.74 is: 11,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.04 : 18,888.60 = 8,662.74 : x
  2. Step 2: Convert to fraction form
    13,701.04/18,888.60 = 8,662.74/x
  3. Step 3: Cross multiply
    13,701.04x = 18,888.60 × 8,662.74
  4. Step 4: Simplify right side
    13,701.04x = 163,627,030.76
  5. Step 5: Solve for x
    x = 163,627,030.76/13,701.04
  6. Step 6: Final answer
    x = 11,942.67

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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.