Home / 14,191.71-21,265.48-5,421.84

Finding the Fourth Proportional to 14,191.71, 21,265.48 and 5,421.84

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Solution

The fourth proportional to 14,191.71, 21,265.48 and 5,421.84 is: 8,124.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,191.71 : 21,265.48 = 5,421.84 : x
  2. Step 2: Convert to fraction form
    14,191.71/21,265.48 = 5,421.84/x
  3. Step 3: Cross multiply
    14,191.71x = 21,265.48 × 5,421.84
  4. Step 4: Simplify right side
    14,191.71x = 115,298,030.08
  5. Step 5: Solve for x
    x = 115,298,030.08/14,191.71
  6. Step 6: Final answer
    x = 8,124.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.