Home / 13,261.52-19,853.88-9,988.40

Finding the Fourth Proportional to 13,261.52, 19,853.88 and 9,988.40

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Solution

The fourth proportional to 13,261.52, 19,853.88 and 9,988.40 is: 14,953.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.52 : 19,853.88 = 9,988.40 : x
  2. Step 2: Convert to fraction form
    13,261.52/19,853.88 = 9,988.40/x
  3. Step 3: Cross multiply
    13,261.52x = 19,853.88 × 9,988.40
  4. Step 4: Simplify right side
    13,261.52x = 198,308,494.99
  5. Step 5: Solve for x
    x = 198,308,494.99/13,261.52
  6. Step 6: Final answer
    x = 14,953.68

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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.