Home / 15,301.15-21,116.60-8,587.24

Finding the Fourth Proportional to 15,301.15, 21,116.60 and 8,587.24

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Solution

The fourth proportional to 15,301.15, 21,116.60 and 8,587.24 is: 11,850.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.15 : 21,116.60 = 8,587.24 : x
  2. Step 2: Convert to fraction form
    15,301.15/21,116.60 = 8,587.24/x
  3. Step 3: Cross multiply
    15,301.15x = 21,116.60 × 8,587.24
  4. Step 4: Simplify right side
    15,301.15x = 181,333,312.18
  5. Step 5: Solve for x
    x = 181,333,312.18/15,301.15
  6. Step 6: Final answer
    x = 11,850.96

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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.