Home / 14,219.70-21,298.77-10,315.50

Finding the Fourth Proportional to 14,219.70, 21,298.77 and 10,315.50

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Solution

The fourth proportional to 14,219.70, 21,298.77 and 10,315.50 is: 15,450.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.70 : 21,298.77 = 10,315.50 : x
  2. Step 2: Convert to fraction form
    14,219.70/21,298.77 = 10,315.50/x
  3. Step 3: Cross multiply
    14,219.70x = 21,298.77 × 10,315.50
  4. Step 4: Simplify right side
    14,219.70x = 219,707,461.94
  5. Step 5: Solve for x
    x = 219,707,461.94/14,219.70
  6. Step 6: Final answer
    x = 15,450.92

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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.