Home / 15,551.12-21,459.84-8,477.30

Finding the Fourth Proportional to 15,551.12, 21,459.84 and 8,477.30

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Solution

The fourth proportional to 15,551.12, 21,459.84 and 8,477.30 is: 11,698.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.12 : 21,459.84 = 8,477.30 : x
  2. Step 2: Convert to fraction form
    15,551.12/21,459.84 = 8,477.30/x
  3. Step 3: Cross multiply
    15,551.12x = 21,459.84 × 8,477.30
  4. Step 4: Simplify right side
    15,551.12x = 181,921,501.63
  5. Step 5: Solve for x
    x = 181,921,501.63/15,551.12
  6. Step 6: Final answer
    x = 11,698.29

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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.