Home / 15,458.11-23,166.66-8,420.07

Finding the Fourth Proportional to 15,458.11, 23,166.66 and 8,420.07

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Solution

The fourth proportional to 15,458.11, 23,166.66 and 8,420.07 is: 12,618.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,458.11 : 23,166.66 = 8,420.07 : x
  2. Step 2: Convert to fraction form
    15,458.11/23,166.66 = 8,420.07/x
  3. Step 3: Cross multiply
    15,458.11x = 23,166.66 × 8,420.07
  4. Step 4: Simplify right side
    15,458.11x = 195,064,839.64
  5. Step 5: Solve for x
    x = 195,064,839.64/15,458.11
  6. Step 6: Final answer
    x = 12,618.93

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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.