Home / 14,511.76-19,995.36-9,787.84

Finding the Fourth Proportional to 14,511.76, 19,995.36 and 9,787.84

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Solution

The fourth proportional to 14,511.76, 19,995.36 and 9,787.84 is: 13,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.76 : 19,995.36 = 9,787.84 : x
  2. Step 2: Convert to fraction form
    14,511.76/19,995.36 = 9,787.84/x
  3. Step 3: Cross multiply
    14,511.76x = 19,995.36 × 9,787.84
  4. Step 4: Simplify right side
    14,511.76x = 195,711,384.42
  5. Step 5: Solve for x
    x = 195,711,384.42/14,511.76
  6. Step 6: Final answer
    x = 13,486.40

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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.