Home / 7,421.70-10,246.74-6,623.67

Finding the Fourth Proportional to 7,421.70, 10,246.74 and 6,623.67

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Solution

The fourth proportional to 7,421.70, 10,246.74 and 6,623.67 is: 9,144.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.70 : 10,246.74 = 6,623.67 : x
  2. Step 2: Convert to fraction form
    7,421.70/10,246.74 = 6,623.67/x
  3. Step 3: Cross multiply
    7,421.70x = 10,246.74 × 6,623.67
  4. Step 4: Simplify right side
    7,421.70x = 67,871,024.34
  5. Step 5: Solve for x
    x = 67,871,024.34/7,421.70
  6. Step 6: Final answer
    x = 9,144.94

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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.