Home / 14,266.06-19,688.54-7,978.44

Finding the Fourth Proportional to 14,266.06, 19,688.54 and 7,978.44

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Solution

The fourth proportional to 14,266.06, 19,688.54 and 7,978.44 is: 11,011.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,266.06 : 19,688.54 = 7,978.44 : x
  2. Step 2: Convert to fraction form
    14,266.06/19,688.54 = 7,978.44/x
  3. Step 3: Cross multiply
    14,266.06x = 19,688.54 × 7,978.44
  4. Step 4: Simplify right side
    14,266.06x = 157,083,835.08
  5. Step 5: Solve for x
    x = 157,083,835.08/14,266.06
  6. Step 6: Final answer
    x = 11,011.02

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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.