Home / 15,261.57-21,063.06-9,212.13

Finding the Fourth Proportional to 15,261.57, 21,063.06 and 9,212.13

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Solution

The fourth proportional to 15,261.57, 21,063.06 and 9,212.13 is: 12,714.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,261.57 : 21,063.06 = 9,212.13 : x
  2. Step 2: Convert to fraction form
    15,261.57/21,063.06 = 9,212.13/x
  3. Step 3: Cross multiply
    15,261.57x = 21,063.06 × 9,212.13
  4. Step 4: Simplify right side
    15,261.57x = 194,035,646.92
  5. Step 5: Solve for x
    x = 194,035,646.92/15,261.57
  6. Step 6: Final answer
    x = 12,714.00

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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.