Home / 14,688.08-20,270.28-9,100.88

Finding the Fourth Proportional to 14,688.08, 20,270.28 and 9,100.88

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Solution

The fourth proportional to 14,688.08, 20,270.28 and 9,100.88 is: 12,559.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.08 : 20,270.28 = 9,100.88 : x
  2. Step 2: Convert to fraction form
    14,688.08/20,270.28 = 9,100.88/x
  3. Step 3: Cross multiply
    14,688.08x = 20,270.28 × 9,100.88
  4. Step 4: Simplify right side
    14,688.08x = 184,477,385.85
  5. Step 5: Solve for x
    x = 184,477,385.85/14,688.08
  6. Step 6: Final answer
    x = 12,559.67

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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.