Home / 10,267.70-15,328.61-9,903.20

Finding the Fourth Proportional to 10,267.70, 15,328.61 and 9,903.20

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Solution

The fourth proportional to 10,267.70, 15,328.61 and 9,903.20 is: 14,784.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,267.70 : 15,328.61 = 9,903.20 : x
  2. Step 2: Convert to fraction form
    10,267.70/15,328.61 = 9,903.20/x
  3. Step 3: Cross multiply
    10,267.70x = 15,328.61 × 9,903.20
  4. Step 4: Simplify right side
    10,267.70x = 151,802,201.53
  5. Step 5: Solve for x
    x = 151,802,201.53/10,267.70
  6. Step 6: Final answer
    x = 14,784.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.