Home / 11,501.58-15,871.18-6,465.42

Finding the Fourth Proportional to 11,501.58, 15,871.18 and 6,465.42

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Solution

The fourth proportional to 11,501.58, 15,871.18 and 6,465.42 is: 8,921.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,501.58 : 15,871.18 = 6,465.42 : x
  2. Step 2: Convert to fraction form
    11,501.58/15,871.18 = 6,465.42/x
  3. Step 3: Cross multiply
    11,501.58x = 15,871.18 × 6,465.42
  4. Step 4: Simplify right side
    11,501.58x = 102,613,844.60
  5. Step 5: Solve for x
    x = 102,613,844.60/11,501.58
  6. Step 6: Final answer
    x = 8,921.72

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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.