Home / 15,460.65-21,335.12-8,386.92

Finding the Fourth Proportional to 15,460.65, 21,335.12 and 8,386.92

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Solution

The fourth proportional to 15,460.65, 21,335.12 and 8,386.92 is: 11,573.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.65 : 21,335.12 = 8,386.92 : x
  2. Step 2: Convert to fraction form
    15,460.65/21,335.12 = 8,386.92/x
  3. Step 3: Cross multiply
    15,460.65x = 21,335.12 × 8,386.92
  4. Step 4: Simplify right side
    15,460.65x = 178,935,944.63
  5. Step 5: Solve for x
    x = 178,935,944.63/15,460.65
  6. Step 6: Final answer
    x = 11,573.64

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Double scale
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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.