Home / 30,186.88-45,281.93-9,126.39

Finding the Fourth Proportional to 30,186.88, 45,281.93 and 9,126.39

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Solution

The fourth proportional to 30,186.88, 45,281.93 and 9,126.39 is: 13,690.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.88 : 45,281.93 = 9,126.39 : x
  2. Step 2: Convert to fraction form
    30,186.88/45,281.93 = 9,126.39/x
  3. Step 3: Cross multiply
    30,186.88x = 45,281.93 × 9,126.39
  4. Step 4: Simplify right side
    30,186.88x = 413,260,461.10
  5. Step 5: Solve for x
    x = 413,260,461.10/30,186.88
  6. Step 6: Final answer
    x = 13,690.07

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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.