Home / 10,342.60-15,521.10-6,653.80

Finding the Fourth Proportional to 10,342.60, 15,521.10 and 6,653.80

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Solution

The fourth proportional to 10,342.60, 15,521.10 and 6,653.80 is: 9,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.60 : 15,521.10 = 6,653.80 : x
  2. Step 2: Convert to fraction form
    10,342.60/15,521.10 = 6,653.80/x
  3. Step 3: Cross multiply
    10,342.60x = 15,521.10 × 6,653.80
  4. Step 4: Simplify right side
    10,342.60x = 103,274,295.18
  5. Step 5: Solve for x
    x = 103,274,295.18/10,342.60
  6. Step 6: Final answer
    x = 9,985.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.