Home / 14,219.58-19,623.63-7,931.95

Finding the Fourth Proportional to 14,219.58, 19,623.63 and 7,931.95

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Solution

The fourth proportional to 14,219.58, 19,623.63 and 7,931.95 is: 10,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.58 : 19,623.63 = 7,931.95 : x
  2. Step 2: Convert to fraction form
    14,219.58/19,623.63 = 7,931.95/x
  3. Step 3: Cross multiply
    14,219.58x = 19,623.63 × 7,931.95
  4. Step 4: Simplify right side
    14,219.58x = 155,653,676.12
  5. Step 5: Solve for x
    x = 155,653,676.12/14,219.58
  6. Step 6: Final answer
    x = 10,946.43

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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.