Home / 15,533.06-21,434.88-8,459.44

Finding the Fourth Proportional to 15,533.06, 21,434.88 and 8,459.44

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Solution

The fourth proportional to 15,533.06, 21,434.88 and 8,459.44 is: 11,673.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.06 : 21,434.88 = 8,459.44 : x
  2. Step 2: Convert to fraction form
    15,533.06/21,434.88 = 8,459.44/x
  3. Step 3: Cross multiply
    15,533.06x = 21,434.88 × 8,459.44
  4. Step 4: Simplify right side
    15,533.06x = 181,327,081.27
  5. Step 5: Solve for x
    x = 181,327,081.27/15,533.06
  6. Step 6: Final answer
    x = 11,673.62

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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.