Home / 15,549.77-21,458.70-8,476.19

Finding the Fourth Proportional to 15,549.77, 21,458.70 and 8,476.19

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Solution

The fourth proportional to 15,549.77, 21,458.70 and 8,476.19 is: 11,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,549.77 : 21,458.70 = 8,476.19 : x
  2. Step 2: Convert to fraction form
    15,549.77/21,458.70 = 8,476.19/x
  3. Step 3: Cross multiply
    15,549.77x = 21,458.70 × 8,476.19
  4. Step 4: Simplify right side
    15,549.77x = 181,888,018.35
  5. Step 5: Solve for x
    x = 181,888,018.35/15,549.77
  6. Step 6: Final answer
    x = 11,697.15

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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.