Home / 9,990.40-14,985.66-4,442.44

Finding the Fourth Proportional to 9,990.40, 14,985.66 and 4,442.44

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Solution

The fourth proportional to 9,990.40, 14,985.66 and 4,442.44 is: 6,663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.40 : 14,985.66 = 4,442.44 : x
  2. Step 2: Convert to fraction form
    9,990.40/14,985.66 = 4,442.44/x
  3. Step 3: Cross multiply
    9,990.40x = 14,985.66 × 4,442.44
  4. Step 4: Simplify right side
    9,990.40x = 66,572,895.41
  5. Step 5: Solve for x
    x = 66,572,895.41/9,990.40
  6. Step 6: Final answer
    x = 6,663.69

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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.