Home / 19,299.12-28,950.58-9,913.38

Finding the Fourth Proportional to 19,299.12, 28,950.58 and 9,913.38

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Solution

The fourth proportional to 19,299.12, 28,950.58 and 9,913.38 is: 14,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.12 : 28,950.58 = 9,913.38 : x
  2. Step 2: Convert to fraction form
    19,299.12/28,950.58 = 9,913.38/x
  3. Step 3: Cross multiply
    19,299.12x = 28,950.58 × 9,913.38
  4. Step 4: Simplify right side
    19,299.12x = 286,998,100.76
  5. Step 5: Solve for x
    x = 286,998,100.76/19,299.12
  6. Step 6: Final answer
    x = 14,871.05

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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.