Home / 10,553.22-15,782.58-9,390.06

Finding the Fourth Proportional to 10,553.22, 15,782.58 and 9,390.06

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Solution

The fourth proportional to 10,553.22, 15,782.58 and 9,390.06 is: 14,043.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,553.22 : 15,782.58 = 9,390.06 : x
  2. Step 2: Convert to fraction form
    10,553.22/15,782.58 = 9,390.06/x
  3. Step 3: Cross multiply
    10,553.22x = 15,782.58 × 9,390.06
  4. Step 4: Simplify right side
    10,553.22x = 148,199,373.15
  5. Step 5: Solve for x
    x = 148,199,373.15/10,553.22
  6. Step 6: Final answer
    x = 14,043.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.