Home / 9,206.76-12,709.65-5,428.74

Finding the Fourth Proportional to 9,206.76, 12,709.65 and 5,428.74

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Solution

The fourth proportional to 9,206.76, 12,709.65 and 5,428.74 is: 7,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,206.76 : 12,709.65 = 5,428.74 : x
  2. Step 2: Convert to fraction form
    9,206.76/12,709.65 = 5,428.74/x
  3. Step 3: Cross multiply
    9,206.76x = 12,709.65 × 5,428.74
  4. Step 4: Simplify right side
    9,206.76x = 68,997,385.34
  5. Step 5: Solve for x
    x = 68,997,385.34/9,206.76
  6. Step 6: Final answer
    x = 7,494.21

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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.