Home / 15,301.10-21,116.36-8,588.86

Finding the Fourth Proportional to 15,301.10, 21,116.36 and 8,588.86

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Solution

The fourth proportional to 15,301.10, 21,116.36 and 8,588.86 is: 11,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.10 : 21,116.36 = 8,588.86 : x
  2. Step 2: Convert to fraction form
    15,301.10/21,116.36 = 8,588.86/x
  3. Step 3: Cross multiply
    15,301.10x = 21,116.36 × 8,588.86
  4. Step 4: Simplify right side
    15,301.10x = 181,365,459.75
  5. Step 5: Solve for x
    x = 181,365,459.75/15,301.10
  6. Step 6: Final answer
    x = 11,853.10

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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.