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Finding the Fourth Proportional to 9,990.37, 14,988.36 and 4,368.53

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Solution

The fourth proportional to 9,990.37, 14,988.36 and 4,368.53 is: 6,554.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.37 : 14,988.36 = 4,368.53 : x
  2. Step 2: Convert to fraction form
    9,990.37/14,988.36 = 4,368.53/x
  3. Step 3: Cross multiply
    9,990.37x = 14,988.36 × 4,368.53
  4. Step 4: Simplify right side
    9,990.37x = 65,477,154.16
  5. Step 5: Solve for x
    x = 65,477,154.16/9,990.37
  6. Step 6: Final answer
    x = 6,554.03

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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.