Home / 10,903.60-15,048.48-6,428.62

Finding the Fourth Proportional to 10,903.60, 15,048.48 and 6,428.62

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Solution

The fourth proportional to 10,903.60, 15,048.48 and 6,428.62 is: 8,872.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,903.60 : 15,048.48 = 6,428.62 : x
  2. Step 2: Convert to fraction form
    10,903.60/15,048.48 = 6,428.62/x
  3. Step 3: Cross multiply
    10,903.60x = 15,048.48 × 6,428.62
  4. Step 4: Simplify right side
    10,903.60x = 96,740,959.50
  5. Step 5: Solve for x
    x = 96,740,959.50/10,903.60
  6. Step 6: Final answer
    x = 8,872.39

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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.