Home / 15,841.05-23,870.54-13,128.77

Finding the Fourth Proportional to 15,841.05, 23,870.54 and 13,128.77

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Solution

The fourth proportional to 15,841.05, 23,870.54 and 13,128.77 is: 19,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,841.05 : 23,870.54 = 13,128.77 : x
  2. Step 2: Convert to fraction form
    15,841.05/23,870.54 = 13,128.77/x
  3. Step 3: Cross multiply
    15,841.05x = 23,870.54 × 13,128.77
  4. Step 4: Simplify right side
    15,841.05x = 313,390,644.44
  5. Step 5: Solve for x
    x = 313,390,644.44/15,841.05
  6. Step 6: Final answer
    x = 19,783.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.