Home / 14,331.30-19,777.08-7,871.04

Finding the Fourth Proportional to 14,331.30, 19,777.08 and 7,871.04

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Solution

The fourth proportional to 14,331.30, 19,777.08 and 7,871.04 is: 10,861.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.30 : 19,777.08 = 7,871.04 : x
  2. Step 2: Convert to fraction form
    14,331.30/19,777.08 = 7,871.04/x
  3. Step 3: Cross multiply
    14,331.30x = 19,777.08 × 7,871.04
  4. Step 4: Simplify right side
    14,331.30x = 155,666,240.74
  5. Step 5: Solve for x
    x = 155,666,240.74/14,331.30
  6. Step 6: Final answer
    x = 10,861.98

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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.