Home / 15,416.57-21,272.71-8,610.67

Finding the Fourth Proportional to 15,416.57, 21,272.71 and 8,610.67

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Solution

The fourth proportional to 15,416.57, 21,272.71 and 8,610.67 is: 11,881.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.57 : 21,272.71 = 8,610.67 : x
  2. Step 2: Convert to fraction form
    15,416.57/21,272.71 = 8,610.67/x
  3. Step 3: Cross multiply
    15,416.57x = 21,272.71 × 8,610.67
  4. Step 4: Simplify right side
    15,416.57x = 183,172,285.82
  5. Step 5: Solve for x
    x = 183,172,285.82/15,416.57
  6. Step 6: Final answer
    x = 11,881.52

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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.