Home / 15,812.40-21,821.76-9,098.04

Finding the Fourth Proportional to 15,812.40, 21,821.76 and 9,098.04

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Solution

The fourth proportional to 15,812.40, 21,821.76 and 9,098.04 is: 12,555.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.40 : 21,821.76 = 9,098.04 : x
  2. Step 2: Convert to fraction form
    15,812.40/21,821.76 = 9,098.04/x
  3. Step 3: Cross multiply
    15,812.40x = 21,821.76 × 9,098.04
  4. Step 4: Simplify right side
    15,812.40x = 198,535,245.35
  5. Step 5: Solve for x
    x = 198,535,245.35/15,812.40
  6. Step 6: Final answer
    x = 12,555.67

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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.