Home / 15,460.17-21,335.07-8,386.62

Finding the Fourth Proportional to 15,460.17, 21,335.07 and 8,386.62

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Solution

The fourth proportional to 15,460.17, 21,335.07 and 8,386.62 is: 11,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.17 : 21,335.07 = 8,386.62 : x
  2. Step 2: Convert to fraction form
    15,460.17/21,335.07 = 8,386.62/x
  3. Step 3: Cross multiply
    15,460.17x = 21,335.07 × 8,386.62
  4. Step 4: Simplify right side
    15,460.17x = 178,929,124.76
  5. Step 5: Solve for x
    x = 178,929,124.76/15,460.17
  6. Step 6: Final answer
    x = 11,573.55

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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.