Home / 13,719.35-18,925.75-8,675.08

Finding the Fourth Proportional to 13,719.35, 18,925.75 and 8,675.08

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Solution

The fourth proportional to 13,719.35, 18,925.75 and 8,675.08 is: 11,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.35 : 18,925.75 = 8,675.08 : x
  2. Step 2: Convert to fraction form
    13,719.35/18,925.75 = 8,675.08/x
  3. Step 3: Cross multiply
    13,719.35x = 18,925.75 × 8,675.08
  4. Step 4: Simplify right side
    13,719.35x = 164,182,358.84
  5. Step 5: Solve for x
    x = 164,182,358.84/13,719.35
  6. Step 6: Final answer
    x = 11,967.21

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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.