Home / 13,300.79-18,355.21-7,332.67

Finding the Fourth Proportional to 13,300.79, 18,355.21 and 7,332.67

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Solution

The fourth proportional to 13,300.79, 18,355.21 and 7,332.67 is: 10,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.79 : 18,355.21 = 7,332.67 : x
  2. Step 2: Convert to fraction form
    13,300.79/18,355.21 = 7,332.67/x
  3. Step 3: Cross multiply
    13,300.79x = 18,355.21 × 7,332.67
  4. Step 4: Simplify right side
    13,300.79x = 134,592,697.71
  5. Step 5: Solve for x
    x = 134,592,697.71/13,300.79
  6. Step 6: Final answer
    x = 10,119.15

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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.