Home / 14,216.32-19,619.40-7,842.88

Finding the Fourth Proportional to 14,216.32, 19,619.40 and 7,842.88

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Solution

The fourth proportional to 14,216.32, 19,619.40 and 7,842.88 is: 10,823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.32 : 19,619.40 = 7,842.88 : x
  2. Step 2: Convert to fraction form
    14,216.32/19,619.40 = 7,842.88/x
  3. Step 3: Cross multiply
    14,216.32x = 19,619.40 × 7,842.88
  4. Step 4: Simplify right side
    14,216.32x = 153,872,599.87
  5. Step 5: Solve for x
    x = 153,872,599.87/14,216.32
  6. Step 6: Final answer
    x = 10,823.66

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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.