Home / 13,134.23-18,124.99-7,165.74

Finding the Fourth Proportional to 13,134.23, 18,124.99 and 7,165.74

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Solution

The fourth proportional to 13,134.23, 18,124.99 and 7,165.74 is: 9,888.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,134.23 : 18,124.99 = 7,165.74 : x
  2. Step 2: Convert to fraction form
    13,134.23/18,124.99 = 7,165.74/x
  3. Step 3: Cross multiply
    13,134.23x = 18,124.99 × 7,165.74
  4. Step 4: Simplify right side
    13,134.23x = 129,878,965.84
  5. Step 5: Solve for x
    x = 129,878,965.84/13,134.23
  6. Step 6: Final answer
    x = 9,888.59

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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.