Home / 15,627.21-21,566.15-8,913.93

Finding the Fourth Proportional to 15,627.21, 21,566.15 and 8,913.93

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Solution

The fourth proportional to 15,627.21, 21,566.15 and 8,913.93 is: 12,301.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.21 : 21,566.15 = 8,913.93 : x
  2. Step 2: Convert to fraction form
    15,627.21/21,566.15 = 8,913.93/x
  3. Step 3: Cross multiply
    15,627.21x = 21,566.15 × 8,913.93
  4. Step 4: Simplify right side
    15,627.21x = 192,239,106.90
  5. Step 5: Solve for x
    x = 192,239,106.90/15,627.21
  6. Step 6: Final answer
    x = 12,301.56

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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.