Home / 15,460.47-23,159.79-7,129.08

Finding the Fourth Proportional to 15,460.47, 23,159.79 and 7,129.08

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Solution

The fourth proportional to 15,460.47, 23,159.79 and 7,129.08 is: 10,679.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.47 : 23,159.79 = 7,129.08 : x
  2. Step 2: Convert to fraction form
    15,460.47/23,159.79 = 7,129.08/x
  3. Step 3: Cross multiply
    15,460.47x = 23,159.79 × 7,129.08
  4. Step 4: Simplify right side
    15,460.47x = 165,107,995.69
  5. Step 5: Solve for x
    x = 165,107,995.69/15,460.47
  6. Step 6: Final answer
    x = 10,679.36

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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.