Home / 12,417.77-17,140.14-7,385.51

Finding the Fourth Proportional to 12,417.77, 17,140.14 and 7,385.51

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Solution

The fourth proportional to 12,417.77, 17,140.14 and 7,385.51 is: 10,194.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.77 : 17,140.14 = 7,385.51 : x
  2. Step 2: Convert to fraction form
    12,417.77/17,140.14 = 7,385.51/x
  3. Step 3: Cross multiply
    12,417.77x = 17,140.14 × 7,385.51
  4. Step 4: Simplify right side
    12,417.77x = 126,588,718.22
  5. Step 5: Solve for x
    x = 126,588,718.22/12,417.77
  6. Step 6: Final answer
    x = 10,194.16

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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.