Home / 12,477.36-17,214.50-7,438.16

Finding the Fourth Proportional to 12,477.36, 17,214.50 and 7,438.16

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Solution

The fourth proportional to 12,477.36, 17,214.50 and 7,438.16 is: 10,262.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.36 : 17,214.50 = 7,438.16 : x
  2. Step 2: Convert to fraction form
    12,477.36/17,214.50 = 7,438.16/x
  3. Step 3: Cross multiply
    12,477.36x = 17,214.50 × 7,438.16
  4. Step 4: Simplify right side
    12,477.36x = 128,044,205.32
  5. Step 5: Solve for x
    x = 128,044,205.32/12,477.36
  6. Step 6: Final answer
    x = 10,262.12

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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.