Home / 8,585.40-11,838.48-7,456.35

Finding the Fourth Proportional to 8,585.40, 11,838.48 and 7,456.35

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Solution

The fourth proportional to 8,585.40, 11,838.48 and 7,456.35 is: 10,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,585.40 : 11,838.48 = 7,456.35 : x
  2. Step 2: Convert to fraction form
    8,585.40/11,838.48 = 7,456.35/x
  3. Step 3: Cross multiply
    8,585.40x = 11,838.48 × 7,456.35
  4. Step 4: Simplify right side
    8,585.40x = 88,271,850.35
  5. Step 5: Solve for x
    x = 88,271,850.35/8,585.40
  6. Step 6: Final answer
    x = 10,281.62

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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.