Home / 10,340.20-15,510.76-3,320.50

Finding the Fourth Proportional to 10,340.20, 15,510.76 and 3,320.50

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Solution

The fourth proportional to 10,340.20, 15,510.76 and 3,320.50 is: 4,980.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.20 : 15,510.76 = 3,320.50 : x
  2. Step 2: Convert to fraction form
    10,340.20/15,510.76 = 3,320.50/x
  3. Step 3: Cross multiply
    10,340.20x = 15,510.76 × 3,320.50
  4. Step 4: Simplify right side
    10,340.20x = 51,503,478.58
  5. Step 5: Solve for x
    x = 51,503,478.58/10,340.20
  6. Step 6: Final answer
    x = 4,980.90

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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.