Home / 13,335.76-19,996.45-6,657.71

Finding the Fourth Proportional to 13,335.76, 19,996.45 and 6,657.71

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Solution

The fourth proportional to 13,335.76, 19,996.45 and 6,657.71 is: 9,982.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.76 : 19,996.45 = 6,657.71 : x
  2. Step 2: Convert to fraction form
    13,335.76/19,996.45 = 6,657.71/x
  3. Step 3: Cross multiply
    13,335.76x = 19,996.45 × 6,657.71
  4. Step 4: Simplify right side
    13,335.76x = 133,130,598.48
  5. Step 5: Solve for x
    x = 133,130,598.48/13,335.76
  6. Step 6: Final answer
    x = 9,982.98

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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.