Home / 7,719.23-10,648.67-5,065.67

Finding the Fourth Proportional to 7,719.23, 10,648.67 and 5,065.67

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Solution

The fourth proportional to 7,719.23, 10,648.67 and 5,065.67 is: 6,988.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.23 : 10,648.67 = 5,065.67 : x
  2. Step 2: Convert to fraction form
    7,719.23/10,648.67 = 5,065.67/x
  3. Step 3: Cross multiply
    7,719.23x = 10,648.67 × 5,065.67
  4. Step 4: Simplify right side
    7,719.23x = 53,942,649.45
  5. Step 5: Solve for x
    x = 53,942,649.45/7,719.23
  6. Step 6: Final answer
    x = 6,988.08

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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.