Home / 13,466.65-18,583.80-7,877.65

Finding the Fourth Proportional to 13,466.65, 18,583.80 and 7,877.65

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Solution

The fourth proportional to 13,466.65, 18,583.80 and 7,877.65 is: 10,871.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,466.65 : 18,583.80 = 7,877.65 : x
  2. Step 2: Convert to fraction form
    13,466.65/18,583.80 = 7,877.65/x
  3. Step 3: Cross multiply
    13,466.65x = 18,583.80 × 7,877.65
  4. Step 4: Simplify right side
    13,466.65x = 146,396,672.07
  5. Step 5: Solve for x
    x = 146,396,672.07/13,466.65
  6. Step 6: Final answer
    x = 10,871.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.