Home / 15,460.28-23,159.51-7,128.89

Finding the Fourth Proportional to 15,460.28, 23,159.51 and 7,128.89

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Solution

The fourth proportional to 15,460.28, 23,159.51 and 7,128.89 is: 10,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,460.28 : 23,159.51 = 7,128.89 : x
  2. Step 2: Convert to fraction form
    15,460.28/23,159.51 = 7,128.89/x
  3. Step 3: Cross multiply
    15,460.28x = 23,159.51 × 7,128.89
  4. Step 4: Simplify right side
    15,460.28x = 165,101,621.50
  5. Step 5: Solve for x
    x = 165,101,621.50/15,460.28
  6. Step 6: Final answer
    x = 10,679.08

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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.