Home / 15,460.62-21,335.09-8,386.89

Finding the Fourth Proportional to 15,460.62, 21,335.09 and 8,386.89

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Solution

The fourth proportional to 15,460.62, 21,335.09 and 8,386.89 is: 11,573.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.62 : 21,335.09 = 8,386.89 : x
  2. Step 2: Convert to fraction form
    15,460.62/21,335.09 = 8,386.89/x
  3. Step 3: Cross multiply
    15,460.62x = 21,335.09 × 8,386.89
  4. Step 4: Simplify right side
    15,460.62x = 178,935,011.04
  5. Step 5: Solve for x
    x = 178,935,011.04/15,460.62
  6. Step 6: Final answer
    x = 11,573.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.