Home / 9,830.80-13,565.88-5,582.08

Finding the Fourth Proportional to 9,830.80, 13,565.88 and 5,582.08

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Solution

The fourth proportional to 9,830.80, 13,565.88 and 5,582.08 is: 7,702.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,830.80 : 13,565.88 = 5,582.08 : x
  2. Step 2: Convert to fraction form
    9,830.80/13,565.88 = 5,582.08/x
  3. Step 3: Cross multiply
    9,830.80x = 13,565.88 × 5,582.08
  4. Step 4: Simplify right side
    9,830.80x = 75,725,827.43
  5. Step 5: Solve for x
    x = 75,725,827.43/9,830.80
  6. Step 6: Final answer
    x = 7,702.92

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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.