Home / 12,531.58-17,285.76-8,061.16

Finding the Fourth Proportional to 12,531.58, 17,285.76 and 8,061.16

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Solution

The fourth proportional to 12,531.58, 17,285.76 and 8,061.16 is: 11,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,531.58 : 17,285.76 = 8,061.16 : x
  2. Step 2: Convert to fraction form
    12,531.58/17,285.76 = 8,061.16/x
  3. Step 3: Cross multiply
    12,531.58x = 17,285.76 × 8,061.16
  4. Step 4: Simplify right side
    12,531.58x = 139,343,277.08
  5. Step 5: Solve for x
    x = 139,343,277.08/12,531.58
  6. Step 6: Final answer
    x = 11,119.37

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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.