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Finding the Fourth Proportional to 9,988.98, 14,985.08 and 3,749.47

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Solution

The fourth proportional to 9,988.98, 14,985.08 and 3,749.47 is: 5,624.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.98 : 14,985.08 = 3,749.47 : x
  2. Step 2: Convert to fraction form
    9,988.98/14,985.08 = 3,749.47/x
  3. Step 3: Cross multiply
    9,988.98x = 14,985.08 × 3,749.47
  4. Step 4: Simplify right side
    9,988.98x = 56,186,107.91
  5. Step 5: Solve for x
    x = 56,186,107.91/9,988.98
  6. Step 6: Final answer
    x = 5,624.81

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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.