Home / 15,663.78-23,499.72-6,901.20

Finding the Fourth Proportional to 15,663.78, 23,499.72 and 6,901.20

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Solution

The fourth proportional to 15,663.78, 23,499.72 and 6,901.20 is: 10,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,663.78 : 23,499.72 = 6,901.20 : x
  2. Step 2: Convert to fraction form
    15,663.78/23,499.72 = 6,901.20/x
  3. Step 3: Cross multiply
    15,663.78x = 23,499.72 × 6,901.20
  4. Step 4: Simplify right side
    15,663.78x = 162,176,267.66
  5. Step 5: Solve for x
    x = 162,176,267.66/15,663.78
  6. Step 6: Final answer
    x = 10,353.58

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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.