Home / 12,357.72-17,040.87-8,585.16

Finding the Fourth Proportional to 12,357.72, 17,040.87 and 8,585.16

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Solution

The fourth proportional to 12,357.72, 17,040.87 and 8,585.16 is: 11,838.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.72 : 17,040.87 = 8,585.16 : x
  2. Step 2: Convert to fraction form
    12,357.72/17,040.87 = 8,585.16/x
  3. Step 3: Cross multiply
    12,357.72x = 17,040.87 × 8,585.16
  4. Step 4: Simplify right side
    12,357.72x = 146,298,595.49
  5. Step 5: Solve for x
    x = 146,298,595.49/12,357.72
  6. Step 6: Final answer
    x = 11,838.64

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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.