Home / 15,456.24-21,308.40-10,349.76

Finding the Fourth Proportional to 15,456.24, 21,308.40 and 10,349.76

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Solution

The fourth proportional to 15,456.24, 21,308.40 and 10,349.76 is: 14,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,456.24 : 21,308.40 = 10,349.76 : x
  2. Step 2: Convert to fraction form
    15,456.24/21,308.40 = 10,349.76/x
  3. Step 3: Cross multiply
    15,456.24x = 21,308.40 × 10,349.76
  4. Step 4: Simplify right side
    15,456.24x = 220,536,825.98
  5. Step 5: Solve for x
    x = 220,536,825.98/15,456.24
  6. Step 6: Final answer
    x = 14,268.47

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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.