Home / 13,964.32-19,271.23-8,220.74

Finding the Fourth Proportional to 13,964.32, 19,271.23 and 8,220.74

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Solution

The fourth proportional to 13,964.32, 19,271.23 and 8,220.74 is: 11,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,964.32 : 19,271.23 = 8,220.74 : x
  2. Step 2: Convert to fraction form
    13,964.32/19,271.23 = 8,220.74/x
  3. Step 3: Cross multiply
    13,964.32x = 19,271.23 × 8,220.74
  4. Step 4: Simplify right side
    13,964.32x = 158,423,726.67
  5. Step 5: Solve for x
    x = 158,423,726.67/13,964.32
  6. Step 6: Final answer
    x = 11,344.90

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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.