Home / 14,158.95-19,539.45-7,871.37

Finding the Fourth Proportional to 14,158.95, 19,539.45 and 7,871.37

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Solution

The fourth proportional to 14,158.95, 19,539.45 and 7,871.37 is: 10,862.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,158.95 : 19,539.45 = 7,871.37 : x
  2. Step 2: Convert to fraction form
    14,158.95/19,539.45 = 7,871.37/x
  3. Step 3: Cross multiply
    14,158.95x = 19,539.45 × 7,871.37
  4. Step 4: Simplify right side
    14,158.95x = 153,802,240.55
  5. Step 5: Solve for x
    x = 153,802,240.55/14,158.95
  6. Step 6: Final answer
    x = 10,862.55

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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.