Home / 14,473.28-19,972.80-8,185.76

Finding the Fourth Proportional to 14,473.28, 19,972.80 and 8,185.76

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Solution

The fourth proportional to 14,473.28, 19,972.80 and 8,185.76 is: 11,296.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,473.28 : 19,972.80 = 8,185.76 : x
  2. Step 2: Convert to fraction form
    14,473.28/19,972.80 = 8,185.76/x
  3. Step 3: Cross multiply
    14,473.28x = 19,972.80 × 8,185.76
  4. Step 4: Simplify right side
    14,473.28x = 163,492,547.33
  5. Step 5: Solve for x
    x = 163,492,547.33/14,473.28
  6. Step 6: Final answer
    x = 11,296.16

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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.