Home / 15,323.14-21,148.24-9,358.30

Finding the Fourth Proportional to 15,323.14, 21,148.24 and 9,358.30

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Solution

The fourth proportional to 15,323.14, 21,148.24 and 9,358.30 is: 12,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.14 : 21,148.24 = 9,358.30 : x
  2. Step 2: Convert to fraction form
    15,323.14/21,148.24 = 9,358.30/x
  3. Step 3: Cross multiply
    15,323.14x = 21,148.24 × 9,358.30
  4. Step 4: Simplify right side
    15,323.14x = 197,911,574.39
  5. Step 5: Solve for x
    x = 197,911,574.39/15,323.14
  6. Step 6: Final answer
    x = 12,915.86

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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.