Home / 13,262.52-19,855.38-9,989.40

Finding the Fourth Proportional to 13,262.52, 19,855.38 and 9,989.40

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Solution

The fourth proportional to 13,262.52, 19,855.38 and 9,989.40 is: 14,955.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.52 : 19,855.38 = 9,989.40 : x
  2. Step 2: Convert to fraction form
    13,262.52/19,855.38 = 9,989.40/x
  3. Step 3: Cross multiply
    13,262.52x = 19,855.38 × 9,989.40
  4. Step 4: Simplify right side
    13,262.52x = 198,343,332.97
  5. Step 5: Solve for x
    x = 198,343,332.97/13,262.52
  6. Step 6: Final answer
    x = 14,955.18

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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.