Home / 15,302.16-21,111.57-10,000.05

Finding the Fourth Proportional to 15,302.16, 21,111.57 and 10,000.05

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Solution

The fourth proportional to 15,302.16, 21,111.57 and 10,000.05 is: 13,796.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.16 : 21,111.57 = 10,000.05 : x
  2. Step 2: Convert to fraction form
    15,302.16/21,111.57 = 10,000.05/x
  3. Step 3: Cross multiply
    15,302.16x = 21,111.57 × 10,000.05
  4. Step 4: Simplify right side
    15,302.16x = 211,116,755.58
  5. Step 5: Solve for x
    x = 211,116,755.58/15,302.16
  6. Step 6: Final answer
    x = 13,796.53

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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.