Home / 9,582.15-13,223.35-5,390.40

Finding the Fourth Proportional to 9,582.15, 13,223.35 and 5,390.40

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Solution

The fourth proportional to 9,582.15, 13,223.35 and 5,390.40 is: 7,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,582.15 : 13,223.35 = 5,390.40 : x
  2. Step 2: Convert to fraction form
    9,582.15/13,223.35 = 5,390.40/x
  3. Step 3: Cross multiply
    9,582.15x = 13,223.35 × 5,390.40
  4. Step 4: Simplify right side
    9,582.15x = 71,279,132.36
  5. Step 5: Solve for x
    x = 71,279,132.36/9,582.15
  6. Step 6: Final answer
    x = 7,438.74

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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.