Home / 11,501.49-15,871.70-6,465.59

Finding the Fourth Proportional to 11,501.49, 15,871.70 and 6,465.59

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Solution

The fourth proportional to 11,501.49, 15,871.70 and 6,465.59 is: 8,922.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,501.49 : 15,871.70 = 6,465.59 : x
  2. Step 2: Convert to fraction form
    11,501.49/15,871.70 = 6,465.59/x
  3. Step 3: Cross multiply
    11,501.49x = 15,871.70 × 6,465.59
  4. Step 4: Simplify right side
    11,501.49x = 102,619,793.12
  5. Step 5: Solve for x
    x = 102,619,793.12/11,501.49
  6. Step 6: Final answer
    x = 8,922.30

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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.