Home / 13,813.32-19,056.30-9,335.45

Finding the Fourth Proportional to 13,813.32, 19,056.30 and 9,335.45

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Solution

The fourth proportional to 13,813.32, 19,056.30 and 9,335.45 is: 12,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.32 : 19,056.30 = 9,335.45 : x
  2. Step 2: Convert to fraction form
    13,813.32/19,056.30 = 9,335.45/x
  3. Step 3: Cross multiply
    13,813.32x = 19,056.30 × 9,335.45
  4. Step 4: Simplify right side
    13,813.32x = 177,899,040.55
  5. Step 5: Solve for x
    x = 177,899,040.55/13,813.32
  6. Step 6: Final answer
    x = 12,878.80

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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.