Home / 15,810.45-21,820.61-9,095.95

Finding the Fourth Proportional to 15,810.45, 21,820.61 and 9,095.95

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Solution

The fourth proportional to 15,810.45, 21,820.61 and 9,095.95 is: 12,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,810.45 : 21,820.61 = 9,095.95 : x
  2. Step 2: Convert to fraction form
    15,810.45/21,820.61 = 9,095.95/x
  3. Step 3: Cross multiply
    15,810.45x = 21,820.61 × 9,095.95
  4. Step 4: Simplify right side
    15,810.45x = 198,479,177.53
  5. Step 5: Solve for x
    x = 198,479,177.53/15,810.45
  6. Step 6: Final answer
    x = 12,553.67

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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.