Home / 12,587.36-17,371.32-7,551.80

Finding the Fourth Proportional to 12,587.36, 17,371.32 and 7,551.80

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Solution

The fourth proportional to 12,587.36, 17,371.32 and 7,551.80 is: 10,421.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.36 : 17,371.32 = 7,551.80 : x
  2. Step 2: Convert to fraction form
    12,587.36/17,371.32 = 7,551.80/x
  3. Step 3: Cross multiply
    12,587.36x = 17,371.32 × 7,551.80
  4. Step 4: Simplify right side
    12,587.36x = 131,184,734.38
  5. Step 5: Solve for x
    x = 131,184,734.38/12,587.36
  6. Step 6: Final answer
    x = 10,421.94

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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.