Home / 15,465.24-21,335.10-10,427.82

Finding the Fourth Proportional to 15,465.24, 21,335.10 and 10,427.82

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Solution

The fourth proportional to 15,465.24, 21,335.10 and 10,427.82 is: 14,385.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.24 : 21,335.10 = 10,427.82 : x
  2. Step 2: Convert to fraction form
    15,465.24/21,335.10 = 10,427.82/x
  3. Step 3: Cross multiply
    15,465.24x = 21,335.10 × 10,427.82
  4. Step 4: Simplify right side
    15,465.24x = 222,478,582.48
  5. Step 5: Solve for x
    x = 222,478,582.48/15,465.24
  6. Step 6: Final answer
    x = 14,385.72

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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.