Home / 9,320.16-13,972.32-4,123.20

Finding the Fourth Proportional to 9,320.16, 13,972.32 and 4,123.20

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Solution

The fourth proportional to 9,320.16, 13,972.32 and 4,123.20 is: 6,181.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.16 : 13,972.32 = 4,123.20 : x
  2. Step 2: Convert to fraction form
    9,320.16/13,972.32 = 4,123.20/x
  3. Step 3: Cross multiply
    9,320.16x = 13,972.32 × 4,123.20
  4. Step 4: Simplify right side
    9,320.16x = 57,610,669.82
  5. Step 5: Solve for x
    x = 57,610,669.82/9,320.16
  6. Step 6: Final answer
    x = 6,181.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.