Home / 10,210.10-15,315.14-2,814.62

Finding the Fourth Proportional to 10,210.10, 15,315.14 and 2,814.62

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Solution

The fourth proportional to 10,210.10, 15,315.14 and 2,814.62 is: 4,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,210.10 : 15,315.14 = 2,814.62 : x
  2. Step 2: Convert to fraction form
    10,210.10/15,315.14 = 2,814.62/x
  3. Step 3: Cross multiply
    10,210.10x = 15,315.14 × 2,814.62
  4. Step 4: Simplify right side
    10,210.10x = 43,106,299.35
  5. Step 5: Solve for x
    x = 43,106,299.35/10,210.10
  6. Step 6: Final answer
    x = 4,221.93

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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.