Home / 9,521.04-13,139.64-5,330.64

Finding the Fourth Proportional to 9,521.04, 13,139.64 and 5,330.64

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Solution

The fourth proportional to 9,521.04, 13,139.64 and 5,330.64 is: 7,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.04 : 13,139.64 = 5,330.64 : x
  2. Step 2: Convert to fraction form
    9,521.04/13,139.64 = 5,330.64/x
  3. Step 3: Cross multiply
    9,521.04x = 13,139.64 × 5,330.64
  4. Step 4: Simplify right side
    9,521.04x = 70,042,690.57
  5. Step 5: Solve for x
    x = 70,042,690.57/9,521.04
  6. Step 6: Final answer
    x = 7,356.62

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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.