Home / 10,267.52-15,320.64-9,640.58

Finding the Fourth Proportional to 10,267.52, 15,320.64 and 9,640.58

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Solution

The fourth proportional to 10,267.52, 15,320.64 and 9,640.58 is: 14,385.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,267.52 : 15,320.64 = 9,640.58 : x
  2. Step 2: Convert to fraction form
    10,267.52/15,320.64 = 9,640.58/x
  3. Step 3: Cross multiply
    10,267.52x = 15,320.64 × 9,640.58
  4. Step 4: Simplify right side
    10,267.52x = 147,699,807.37
  5. Step 5: Solve for x
    x = 147,699,807.37/10,267.52
  6. Step 6: Final answer
    x = 14,385.15

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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.