Home / 9,775.20-13,489.89-5,298.99

Finding the Fourth Proportional to 9,775.20, 13,489.89 and 5,298.99

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Solution

The fourth proportional to 9,775.20, 13,489.89 and 5,298.99 is: 7,312.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775.20 : 13,489.89 = 5,298.99 : x
  2. Step 2: Convert to fraction form
    9,775.20/13,489.89 = 5,298.99/x
  3. Step 3: Cross multiply
    9,775.20x = 13,489.89 × 5,298.99
  4. Step 4: Simplify right side
    9,775.20x = 71,482,792.21
  5. Step 5: Solve for x
    x = 71,482,792.21/9,775.20
  6. Step 6: Final answer
    x = 7,312.67

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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.