Home / 9,001.68-12,420.90-5,022.60

Finding the Fourth Proportional to 9,001.68, 12,420.90 and 5,022.60

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Solution

The fourth proportional to 9,001.68, 12,420.90 and 5,022.60 is: 6,930.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.68 : 12,420.90 = 5,022.60 : x
  2. Step 2: Convert to fraction form
    9,001.68/12,420.90 = 5,022.60/x
  3. Step 3: Cross multiply
    9,001.68x = 12,420.90 × 5,022.60
  4. Step 4: Simplify right side
    9,001.68x = 62,385,212.34
  5. Step 5: Solve for x
    x = 62,385,212.34/9,001.68
  6. Step 6: Final answer
    x = 6,930.40

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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.