Home / 10,390.10-15,548.70-8,946.68

Finding the Fourth Proportional to 10,390.10, 15,548.70 and 8,946.68

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Solution

The fourth proportional to 10,390.10, 15,548.70 and 8,946.68 is: 13,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.10 : 15,548.70 = 8,946.68 : x
  2. Step 2: Convert to fraction form
    10,390.10/15,548.70 = 8,946.68/x
  3. Step 3: Cross multiply
    10,390.10x = 15,548.70 × 8,946.68
  4. Step 4: Simplify right side
    10,390.10x = 139,109,243.32
  5. Step 5: Solve for x
    x = 139,109,243.32/10,390.10
  6. Step 6: Final answer
    x = 13,388.63

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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.