Home / 9,919.05-13,688.93-6,555.98

Finding the Fourth Proportional to 9,919.05, 13,688.93 and 6,555.98

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Solution

The fourth proportional to 9,919.05, 13,688.93 and 6,555.98 is: 9,047.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.05 : 13,688.93 = 6,555.98 : x
  2. Step 2: Convert to fraction form
    9,919.05/13,688.93 = 6,555.98/x
  3. Step 3: Cross multiply
    9,919.05x = 13,688.93 × 6,555.98
  4. Step 4: Simplify right side
    9,919.05x = 89,744,250.08
  5. Step 5: Solve for x
    x = 89,744,250.08/9,919.05
  6. Step 6: Final answer
    x = 9,047.67

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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.