Home / 15,477.65-21,352.30-9,186.38

Finding the Fourth Proportional to 15,477.65, 21,352.30 and 9,186.38

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Solution

The fourth proportional to 15,477.65, 21,352.30 and 9,186.38 is: 12,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.65 : 21,352.30 = 9,186.38 : x
  2. Step 2: Convert to fraction form
    15,477.65/21,352.30 = 9,186.38/x
  3. Step 3: Cross multiply
    15,477.65x = 21,352.30 × 9,186.38
  4. Step 4: Simplify right side
    15,477.65x = 196,150,341.67
  5. Step 5: Solve for x
    x = 196,150,341.67/15,477.65
  6. Step 6: Final answer
    x = 12,673.13

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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.