Home / 15,583.89-21,504.59-8,510.32

Finding the Fourth Proportional to 15,583.89, 21,504.59 and 8,510.32

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Solution

The fourth proportional to 15,583.89, 21,504.59 and 8,510.32 is: 11,743.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,583.89 : 21,504.59 = 8,510.32 : x
  2. Step 2: Convert to fraction form
    15,583.89/21,504.59 = 8,510.32/x
  3. Step 3: Cross multiply
    15,583.89x = 21,504.59 × 8,510.32
  4. Step 4: Simplify right side
    15,583.89x = 183,010,837.65
  5. Step 5: Solve for x
    x = 183,010,837.65/15,583.89
  6. Step 6: Final answer
    x = 11,743.59

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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.