Home / 15,501.04-21,391.50-9,213.46

Finding the Fourth Proportional to 15,501.04, 21,391.50 and 9,213.46

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Solution

The fourth proportional to 15,501.04, 21,391.50 and 9,213.46 is: 12,714.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.04 : 21,391.50 = 9,213.46 : x
  2. Step 2: Convert to fraction form
    15,501.04/21,391.50 = 9,213.46/x
  3. Step 3: Cross multiply
    15,501.04x = 21,391.50 × 9,213.46
  4. Step 4: Simplify right side
    15,501.04x = 197,089,729.59
  5. Step 5: Solve for x
    x = 197,089,729.59/15,501.04
  6. Step 6: Final answer
    x = 12,714.61

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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.