Home / 14,140.35-21,213.93-9,988.44

Finding the Fourth Proportional to 14,140.35, 21,213.93 and 9,988.44

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Solution

The fourth proportional to 14,140.35, 21,213.93 and 9,988.44 is: 14,985.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,140.35 : 21,213.93 = 9,988.44 : x
  2. Step 2: Convert to fraction form
    14,140.35/21,213.93 = 9,988.44/x
  3. Step 3: Cross multiply
    14,140.35x = 21,213.93 × 9,988.44
  4. Step 4: Simplify right side
    14,140.35x = 211,894,066.97
  5. Step 5: Solve for x
    x = 211,894,066.97/14,140.35
  6. Step 6: Final answer
    x = 14,985.07

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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.