Home / 13,559.31-18,709.68-7,591.23

Finding the Fourth Proportional to 13,559.31, 18,709.68 and 7,591.23

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Solution

The fourth proportional to 13,559.31, 18,709.68 and 7,591.23 is: 10,474.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.31 : 18,709.68 = 7,591.23 : x
  2. Step 2: Convert to fraction form
    13,559.31/18,709.68 = 7,591.23/x
  3. Step 3: Cross multiply
    13,559.31x = 18,709.68 × 7,591.23
  4. Step 4: Simplify right side
    13,559.31x = 142,029,484.11
  5. Step 5: Solve for x
    x = 142,029,484.11/13,559.31
  6. Step 6: Final answer
    x = 10,474.68

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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.