Home / 10,348.59-15,510.73-4,790.20

Finding the Fourth Proportional to 10,348.59, 15,510.73 and 4,790.20

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Solution

The fourth proportional to 10,348.59, 15,510.73 and 4,790.20 is: 7,179.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.59 : 15,510.73 = 4,790.20 : x
  2. Step 2: Convert to fraction form
    10,348.59/15,510.73 = 4,790.20/x
  3. Step 3: Cross multiply
    10,348.59x = 15,510.73 × 4,790.20
  4. Step 4: Simplify right side
    10,348.59x = 74,299,498.85
  5. Step 5: Solve for x
    x = 74,299,498.85/10,348.59
  6. Step 6: Final answer
    x = 7,179.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.