Home / 9,521.87-13,140.36-5,330.11

Finding the Fourth Proportional to 9,521.87, 13,140.36 and 5,330.11

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Solution

The fourth proportional to 9,521.87, 13,140.36 and 5,330.11 is: 7,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.87 : 13,140.36 = 5,330.11 : x
  2. Step 2: Convert to fraction form
    9,521.87/13,140.36 = 5,330.11/x
  3. Step 3: Cross multiply
    9,521.87x = 13,140.36 × 5,330.11
  4. Step 4: Simplify right side
    9,521.87x = 70,039,564.24
  5. Step 5: Solve for x
    x = 70,039,564.24/9,521.87
  6. Step 6: Final answer
    x = 7,355.65

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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.