Home / 13,535.30-20,297.57-5,210.70

Finding the Fourth Proportional to 13,535.30, 20,297.57 and 5,210.70

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Solution

The fourth proportional to 13,535.30, 20,297.57 and 5,210.70 is: 7,813.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.30 : 20,297.57 = 5,210.70 : x
  2. Step 2: Convert to fraction form
    13,535.30/20,297.57 = 5,210.70/x
  3. Step 3: Cross multiply
    13,535.30x = 20,297.57 × 5,210.70
  4. Step 4: Simplify right side
    13,535.30x = 105,764,521.95
  5. Step 5: Solve for x
    x = 105,764,521.95/13,535.30
  6. Step 6: Final answer
    x = 7,813.98

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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.