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Finding the Fourth Proportional to 15,984, 22,059.56 and 9,612.68

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Solution

The fourth proportional to 15,984, 22,059.56 and 9,612.68 is: 13,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984 : 22,059.56 = 9,612.68 : x
  2. Step 2: Convert to fraction form
    15,984/22,059.56 = 9,612.68/x
  3. Step 3: Cross multiply
    15,984x = 22,059.56 × 9,612.68
  4. Step 4: Simplify right side
    15,984x = 212,051,491.22
  5. Step 5: Solve for x
    x = 212,051,491.22/15,984
  6. Step 6: Final answer
    x = 13,266.48

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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.