Home / 15,228.12-22,786.80-12,570.92

Finding the Fourth Proportional to 15,228.12, 22,786.80 and 12,570.92

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Solution

The fourth proportional to 15,228.12, 22,786.80 and 12,570.92 is: 18,810.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228.12 : 22,786.80 = 12,570.92 : x
  2. Step 2: Convert to fraction form
    15,228.12/22,786.80 = 12,570.92/x
  3. Step 3: Cross multiply
    15,228.12x = 22,786.80 × 12,570.92
  4. Step 4: Simplify right side
    15,228.12x = 286,450,925.92
  5. Step 5: Solve for x
    x = 286,450,925.92/15,228.12
  6. Step 6: Final answer
    x = 18,810.66

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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.