Home / 13,957.88-19,262.20-7,670.38

Finding the Fourth Proportional to 13,957.88, 19,262.20 and 7,670.38

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Solution

The fourth proportional to 13,957.88, 19,262.20 and 7,670.38 is: 10,585.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.88 : 19,262.20 = 7,670.38 : x
  2. Step 2: Convert to fraction form
    13,957.88/19,262.20 = 7,670.38/x
  3. Step 3: Cross multiply
    13,957.88x = 19,262.20 × 7,670.38
  4. Step 4: Simplify right side
    13,957.88x = 147,748,393.64
  5. Step 5: Solve for x
    x = 147,748,393.64/13,957.88
  6. Step 6: Final answer
    x = 10,585.30

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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.