Home / 13,855.80-19,101.24-8,547.06

Finding the Fourth Proportional to 13,855.80, 19,101.24 and 8,547.06

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Solution

The fourth proportional to 13,855.80, 19,101.24 and 8,547.06 is: 11,782.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.80 : 19,101.24 = 8,547.06 : x
  2. Step 2: Convert to fraction form
    13,855.80/19,101.24 = 8,547.06/x
  3. Step 3: Cross multiply
    13,855.80x = 19,101.24 × 8,547.06
  4. Step 4: Simplify right side
    13,855.80x = 163,259,444.35
  5. Step 5: Solve for x
    x = 163,259,444.35/13,855.80
  6. Step 6: Final answer
    x = 11,782.75

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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.