Home / 15,550.13-21,459.60-8,477.01

Finding the Fourth Proportional to 15,550.13, 21,459.60 and 8,477.01

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Solution

The fourth proportional to 15,550.13, 21,459.60 and 8,477.01 is: 11,698.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,550.13 : 21,459.60 = 8,477.01 : x
  2. Step 2: Convert to fraction form
    15,550.13/21,459.60 = 8,477.01/x
  3. Step 3: Cross multiply
    15,550.13x = 21,459.60 × 8,477.01
  4. Step 4: Simplify right side
    15,550.13x = 181,913,243.80
  5. Step 5: Solve for x
    x = 181,913,243.80/15,550.13
  6. Step 6: Final answer
    x = 11,698.50

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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.