Home / 15,412.18-21,267.21-8,698.18

Finding the Fourth Proportional to 15,412.18, 21,267.21 and 8,698.18

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Solution

The fourth proportional to 15,412.18, 21,267.21 and 8,698.18 is: 12,002.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.18 : 21,267.21 = 8,698.18 : x
  2. Step 2: Convert to fraction form
    15,412.18/21,267.21 = 8,698.18/x
  3. Step 3: Cross multiply
    15,412.18x = 21,267.21 × 8,698.18
  4. Step 4: Simplify right side
    15,412.18x = 184,986,020.68
  5. Step 5: Solve for x
    x = 184,986,020.68/15,412.18
  6. Step 6: Final answer
    x = 12,002.59

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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.