Home / 9,000.47-12,420.61-5,021.58

Finding the Fourth Proportional to 9,000.47, 12,420.61 and 5,021.58

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Solution

The fourth proportional to 9,000.47, 12,420.61 and 5,021.58 is: 6,929.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.47 : 12,420.61 = 5,021.58 : x
  2. Step 2: Convert to fraction form
    9,000.47/12,420.61 = 5,021.58/x
  3. Step 3: Cross multiply
    9,000.47x = 12,420.61 × 5,021.58
  4. Step 4: Simplify right side
    9,000.47x = 62,371,074.21
  5. Step 5: Solve for x
    x = 62,371,074.21/9,000.47
  6. Step 6: Final answer
    x = 6,929.76

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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.