Home / 15,416.17-21,276.67-11,186.44

Finding the Fourth Proportional to 15,416.17, 21,276.67 and 11,186.44

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Solution

The fourth proportional to 15,416.17, 21,276.67 and 11,186.44 is: 15,439.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.17 : 21,276.67 = 11,186.44 : x
  2. Step 2: Convert to fraction form
    15,416.17/21,276.67 = 11,186.44/x
  3. Step 3: Cross multiply
    15,416.17x = 21,276.67 × 11,186.44
  4. Step 4: Simplify right side
    15,416.17x = 238,010,206.09
  5. Step 5: Solve for x
    x = 238,010,206.09/15,416.17
  6. Step 6: Final answer
    x = 15,439.00

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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.