Home / 6,916.19-9,543.96-3,931.61

Finding the Fourth Proportional to 6,916.19, 9,543.96 and 3,931.61

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Solution

The fourth proportional to 6,916.19, 9,543.96 and 3,931.61 is: 5,425.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.19 : 9,543.96 = 3,931.61 : x
  2. Step 2: Convert to fraction form
    6,916.19/9,543.96 = 3,931.61/x
  3. Step 3: Cross multiply
    6,916.19x = 9,543.96 × 3,931.61
  4. Step 4: Simplify right side
    6,916.19x = 37,523,080.86
  5. Step 5: Solve for x
    x = 37,523,080.86/6,916.19
  6. Step 6: Final answer
    x = 5,425.40

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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.