Home / 15,045.10-20,751.96-10,321.18

Finding the Fourth Proportional to 15,045.10, 20,751.96 and 10,321.18

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Solution

The fourth proportional to 15,045.10, 20,751.96 and 10,321.18 is: 14,236.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,045.10 : 20,751.96 = 10,321.18 : x
  2. Step 2: Convert to fraction form
    15,045.10/20,751.96 = 10,321.18/x
  3. Step 3: Cross multiply
    15,045.10x = 20,751.96 × 10,321.18
  4. Step 4: Simplify right side
    15,045.10x = 214,184,714.51
  5. Step 5: Solve for x
    x = 214,184,714.51/15,045.10
  6. Step 6: Final answer
    x = 14,236.18

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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.