Home / 12,602.36-17,391.40-6,937.76

Finding the Fourth Proportional to 12,602.36, 17,391.40 and 6,937.76

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Solution

The fourth proportional to 12,602.36, 17,391.40 and 6,937.76 is: 9,574.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602.36 : 17,391.40 = 6,937.76 : x
  2. Step 2: Convert to fraction form
    12,602.36/17,391.40 = 6,937.76/x
  3. Step 3: Cross multiply
    12,602.36x = 17,391.40 × 6,937.76
  4. Step 4: Simplify right side
    12,602.36x = 120,657,359.26
  5. Step 5: Solve for x
    x = 120,657,359.26/12,602.36
  6. Step 6: Final answer
    x = 9,574.19

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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.