Home / 15,510.33-21,404.93-8,795.93

Finding the Fourth Proportional to 15,510.33, 21,404.93 and 8,795.93

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Solution

The fourth proportional to 15,510.33, 21,404.93 and 8,795.93 is: 12,138.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.33 : 21,404.93 = 8,795.93 : x
  2. Step 2: Convert to fraction form
    15,510.33/21,404.93 = 8,795.93/x
  3. Step 3: Cross multiply
    15,510.33x = 21,404.93 × 8,795.93
  4. Step 4: Simplify right side
    15,510.33x = 188,276,114.93
  5. Step 5: Solve for x
    x = 188,276,114.93/15,510.33
  6. Step 6: Final answer
    x = 12,138.76

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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.