Home / 13,987.28-19,300.88-8,017.32

Finding the Fourth Proportional to 13,987.28, 19,300.88 and 8,017.32

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Solution

The fourth proportional to 13,987.28, 19,300.88 and 8,017.32 is: 11,063.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.28 : 19,300.88 = 8,017.32 : x
  2. Step 2: Convert to fraction form
    13,987.28/19,300.88 = 8,017.32/x
  3. Step 3: Cross multiply
    13,987.28x = 19,300.88 × 8,017.32
  4. Step 4: Simplify right side
    13,987.28x = 154,741,331.24
  5. Step 5: Solve for x
    x = 154,741,331.24/13,987.28
  6. Step 6: Final answer
    x = 11,063.00

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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.