Home / 19,166.12-28,710.30-12,595.40

Finding the Fourth Proportional to 19,166.12, 28,710.30 and 12,595.40

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Solution

The fourth proportional to 19,166.12, 28,710.30 and 12,595.40 is: 18,867.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.12 : 28,710.30 = 12,595.40 : x
  2. Step 2: Convert to fraction form
    19,166.12/28,710.30 = 12,595.40/x
  3. Step 3: Cross multiply
    19,166.12x = 28,710.30 × 12,595.40
  4. Step 4: Simplify right side
    19,166.12x = 361,617,712.62
  5. Step 5: Solve for x
    x = 361,617,712.62/19,166.12
  6. Step 6: Final answer
    x = 18,867.55

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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.