Home / 6,916.08-9,543.36-3,931.92

Finding the Fourth Proportional to 6,916.08, 9,543.36 and 3,931.92

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Solution

The fourth proportional to 6,916.08, 9,543.36 and 3,931.92 is: 5,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.08 : 9,543.36 = 3,931.92 : x
  2. Step 2: Convert to fraction form
    6,916.08/9,543.36 = 3,931.92/x
  3. Step 3: Cross multiply
    6,916.08x = 9,543.36 × 3,931.92
  4. Step 4: Simplify right side
    6,916.08x = 37,523,728.05
  5. Step 5: Solve for x
    x = 37,523,728.05/6,916.08
  6. Step 6: Final answer
    x = 5,425.58

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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.