Home / 10,001.90-14,986.65-9,418.70

Finding the Fourth Proportional to 10,001.90, 14,986.65 and 9,418.70

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Solution

The fourth proportional to 10,001.90, 14,986.65 and 9,418.70 is: 14,112.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.90 : 14,986.65 = 9,418.70 : x
  2. Step 2: Convert to fraction form
    10,001.90/14,986.65 = 9,418.70/x
  3. Step 3: Cross multiply
    10,001.90x = 14,986.65 × 9,418.70
  4. Step 4: Simplify right side
    10,001.90x = 141,154,760.36
  5. Step 5: Solve for x
    x = 141,154,760.36/10,001.90
  6. Step 6: Final answer
    x = 14,112.79

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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.