Home / 9,291.56-12,822.50-5,312.70

Finding the Fourth Proportional to 9,291.56, 12,822.50 and 5,312.70

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Solution

The fourth proportional to 9,291.56, 12,822.50 and 5,312.70 is: 7,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.56 : 12,822.50 = 5,312.70 : x
  2. Step 2: Convert to fraction form
    9,291.56/12,822.50 = 5,312.70/x
  3. Step 3: Cross multiply
    9,291.56x = 12,822.50 × 5,312.70
  4. Step 4: Simplify right side
    9,291.56x = 68,122,109.03
  5. Step 5: Solve for x
    x = 68,122,109.03/9,291.56
  6. Step 6: Final answer
    x = 7,331.62

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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.