Home / 15,476.24-21,357.44-8,402.66

Finding the Fourth Proportional to 15,476.24, 21,357.44 and 8,402.66

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Solution

The fourth proportional to 15,476.24, 21,357.44 and 8,402.66 is: 11,595.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,476.24 : 21,357.44 = 8,402.66 : x
  2. Step 2: Convert to fraction form
    15,476.24/21,357.44 = 8,402.66/x
  3. Step 3: Cross multiply
    15,476.24x = 21,357.44 × 8,402.66
  4. Step 4: Simplify right side
    15,476.24x = 179,459,381.19
  5. Step 5: Solve for x
    x = 179,459,381.19/15,476.24
  6. Step 6: Final answer
    x = 11,595.80

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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.