Home / 9,329.24-12,873.88-5,137.40

Finding the Fourth Proportional to 9,329.24, 12,873.88 and 5,137.40

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Solution

The fourth proportional to 9,329.24, 12,873.88 and 5,137.40 is: 7,089.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.24 : 12,873.88 = 5,137.40 : x
  2. Step 2: Convert to fraction form
    9,329.24/12,873.88 = 5,137.40/x
  3. Step 3: Cross multiply
    9,329.24x = 12,873.88 × 5,137.40
  4. Step 4: Simplify right side
    9,329.24x = 66,138,271.11
  5. Step 5: Solve for x
    x = 66,138,271.11/9,329.24
  6. Step 6: Final answer
    x = 7,089.35

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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.