Home / 7,312.08-10,979.64-6,344.40

Finding the Fourth Proportional to 7,312.08, 10,979.64 and 6,344.40

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Solution

The fourth proportional to 7,312.08, 10,979.64 and 6,344.40 is: 9,526.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,312.08 : 10,979.64 = 6,344.40 : x
  2. Step 2: Convert to fraction form
    7,312.08/10,979.64 = 6,344.40/x
  3. Step 3: Cross multiply
    7,312.08x = 10,979.64 × 6,344.40
  4. Step 4: Simplify right side
    7,312.08x = 69,659,228.02
  5. Step 5: Solve for x
    x = 69,659,228.02/7,312.08
  6. Step 6: Final answer
    x = 9,526.60

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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.