Home / 15,301.22-21,116.49-8,586.50

Finding the Fourth Proportional to 15,301.22, 21,116.49 and 8,586.50

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Solution

The fourth proportional to 15,301.22, 21,116.49 and 8,586.50 is: 11,849.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.22 : 21,116.49 = 8,586.50 : x
  2. Step 2: Convert to fraction form
    15,301.22/21,116.49 = 8,586.50/x
  3. Step 3: Cross multiply
    15,301.22x = 21,116.49 × 8,586.50
  4. Step 4: Simplify right side
    15,301.22x = 181,316,741.39
  5. Step 5: Solve for x
    x = 181,316,741.39/15,301.22
  6. Step 6: Final answer
    x = 11,849.82

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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.