Home / 15,630.42-21,569.94-9,342.84

Finding the Fourth Proportional to 15,630.42, 21,569.94 and 9,342.84

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Solution

The fourth proportional to 15,630.42, 21,569.94 and 9,342.84 is: 12,893.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.42 : 21,569.94 = 9,342.84 : x
  2. Step 2: Convert to fraction form
    15,630.42/21,569.94 = 9,342.84/x
  3. Step 3: Cross multiply
    15,630.42x = 21,569.94 × 9,342.84
  4. Step 4: Simplify right side
    15,630.42x = 201,524,498.23
  5. Step 5: Solve for x
    x = 201,524,498.23/15,630.42
  6. Step 6: Final answer
    x = 12,893.10

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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.