Home / 18,870.59-28,313.57-9,513.30

Finding the Fourth Proportional to 18,870.59, 28,313.57 and 9,513.30

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Solution

The fourth proportional to 18,870.59, 28,313.57 and 9,513.30 is: 14,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870.59 : 28,313.57 = 9,513.30 : x
  2. Step 2: Convert to fraction form
    18,870.59/28,313.57 = 9,513.30/x
  3. Step 3: Cross multiply
    18,870.59x = 28,313.57 × 9,513.30
  4. Step 4: Simplify right side
    18,870.59x = 269,355,437.91
  5. Step 5: Solve for x
    x = 269,355,437.91/18,870.59
  6. Step 6: Final answer
    x = 14,273.83

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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.