Home / 14,077.88-19,428.08-7,790.25

Finding the Fourth Proportional to 14,077.88, 19,428.08 and 7,790.25

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Solution

The fourth proportional to 14,077.88, 19,428.08 and 7,790.25 is: 10,750.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,077.88 : 19,428.08 = 7,790.25 : x
  2. Step 2: Convert to fraction form
    14,077.88/19,428.08 = 7,790.25/x
  3. Step 3: Cross multiply
    14,077.88x = 19,428.08 × 7,790.25
  4. Step 4: Simplify right side
    14,077.88x = 151,349,561.27
  5. Step 5: Solve for x
    x = 151,349,561.27/14,077.88
  6. Step 6: Final answer
    x = 10,750.88

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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.