Home / 15,780.87-23,648.75-11,587.98

Finding the Fourth Proportional to 15,780.87, 23,648.75 and 11,587.98

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Solution

The fourth proportional to 15,780.87, 23,648.75 and 11,587.98 is: 17,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.87 : 23,648.75 = 11,587.98 : x
  2. Step 2: Convert to fraction form
    15,780.87/23,648.75 = 11,587.98/x
  3. Step 3: Cross multiply
    15,780.87x = 23,648.75 × 11,587.98
  4. Step 4: Simplify right side
    15,780.87x = 274,041,316.22
  5. Step 5: Solve for x
    x = 274,041,316.22/15,780.87
  6. Step 6: Final answer
    x = 17,365.41

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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.