Home / 18,385.80-25,373.04-10,427.76

Finding the Fourth Proportional to 18,385.80, 25,373.04 and 10,427.76

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Solution

The fourth proportional to 18,385.80, 25,373.04 and 10,427.76 is: 14,390.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.80 : 25,373.04 = 10,427.76 : x
  2. Step 2: Convert to fraction form
    18,385.80/25,373.04 = 10,427.76/x
  3. Step 3: Cross multiply
    18,385.80x = 25,373.04 × 10,427.76
  4. Step 4: Simplify right side
    18,385.80x = 264,583,971.59
  5. Step 5: Solve for x
    x = 264,583,971.59/18,385.80
  6. Step 6: Final answer
    x = 14,390.67

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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.