Home / 7,167.36-9,890.70-4,931.76

Finding the Fourth Proportional to 7,167.36, 9,890.70 and 4,931.76

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Solution

The fourth proportional to 7,167.36, 9,890.70 and 4,931.76 is: 6,805.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167.36 : 9,890.70 = 4,931.76 : x
  2. Step 2: Convert to fraction form
    7,167.36/9,890.70 = 4,931.76/x
  3. Step 3: Cross multiply
    7,167.36x = 9,890.70 × 4,931.76
  4. Step 4: Simplify right side
    7,167.36x = 48,778,558.63
  5. Step 5: Solve for x
    x = 48,778,558.63/7,167.36
  6. Step 6: Final answer
    x = 6,805.65

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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.