Home / 14,689.37-20,263.81-9,378.60

Finding the Fourth Proportional to 14,689.37, 20,263.81 and 9,378.60

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Solution

The fourth proportional to 14,689.37, 20,263.81 and 9,378.60 is: 12,937.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.37 : 20,263.81 = 9,378.60 : x
  2. Step 2: Convert to fraction form
    14,689.37/20,263.81 = 9,378.60/x
  3. Step 3: Cross multiply
    14,689.37x = 20,263.81 × 9,378.60
  4. Step 4: Simplify right side
    14,689.37x = 190,046,168.47
  5. Step 5: Solve for x
    x = 190,046,168.47/14,689.37
  6. Step 6: Final answer
    x = 12,937.67

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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.