Home / 15,813.11-21,840.48-10,498.70

Finding the Fourth Proportional to 15,813.11, 21,840.48 and 10,498.70

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Solution

The fourth proportional to 15,813.11, 21,840.48 and 10,498.70 is: 14,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.11 : 21,840.48 = 10,498.70 : x
  2. Step 2: Convert to fraction form
    15,813.11/21,840.48 = 10,498.70/x
  3. Step 3: Cross multiply
    15,813.11x = 21,840.48 × 10,498.70
  4. Step 4: Simplify right side
    15,813.11x = 229,296,538.17
  5. Step 5: Solve for x
    x = 229,296,538.17/15,813.11
  6. Step 6: Final answer
    x = 14,500.41

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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.