Home / 15,576.52-21,492.64-9,289.48

Finding the Fourth Proportional to 15,576.52, 21,492.64 and 9,289.48

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Solution

The fourth proportional to 15,576.52, 21,492.64 and 9,289.48 is: 12,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,576.52 : 21,492.64 = 9,289.48 : x
  2. Step 2: Convert to fraction form
    15,576.52/21,492.64 = 9,289.48/x
  3. Step 3: Cross multiply
    15,576.52x = 21,492.64 × 9,289.48
  4. Step 4: Simplify right side
    15,576.52x = 199,655,449.43
  5. Step 5: Solve for x
    x = 199,655,449.43/15,576.52
  6. Step 6: Final answer
    x = 12,817.72

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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.