Home / 9,990.68-14,985.66-3,065

Finding the Fourth Proportional to 9,990.68, 14,985.66 and 3,065

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Solution

The fourth proportional to 9,990.68, 14,985.66 and 3,065 is: 4,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.68 : 14,985.66 = 3,065 : x
  2. Step 2: Convert to fraction form
    9,990.68/14,985.66 = 3,065/x
  3. Step 3: Cross multiply
    9,990.68x = 14,985.66 × 3,065
  4. Step 4: Simplify right side
    9,990.68x = 45,931,047.90
  5. Step 5: Solve for x
    x = 45,931,047.90/9,990.68
  6. Step 6: Final answer
    x = 4,597.39

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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.