Home / 15,499.77-21,407.22-10,455.27

Finding the Fourth Proportional to 15,499.77, 21,407.22 and 10,455.27

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Solution

The fourth proportional to 15,499.77, 21,407.22 and 10,455.27 is: 14,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.77 : 21,407.22 = 10,455.27 : x
  2. Step 2: Convert to fraction form
    15,499.77/21,407.22 = 10,455.27/x
  3. Step 3: Cross multiply
    15,499.77x = 21,407.22 × 10,455.27
  4. Step 4: Simplify right side
    15,499.77x = 223,818,265.05
  5. Step 5: Solve for x
    x = 223,818,265.05/15,499.77
  6. Step 6: Final answer
    x = 14,440.10

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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.