Home / 12,931.10-17,845.17-10,101.77

Finding the Fourth Proportional to 12,931.10, 17,845.17 and 10,101.77

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Solution

The fourth proportional to 12,931.10, 17,845.17 and 10,101.77 is: 13,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.10 : 17,845.17 = 10,101.77 : x
  2. Step 2: Convert to fraction form
    12,931.10/17,845.17 = 10,101.77/x
  3. Step 3: Cross multiply
    12,931.10x = 17,845.17 × 10,101.77
  4. Step 4: Simplify right side
    12,931.10x = 180,267,802.95
  5. Step 5: Solve for x
    x = 180,267,802.95/12,931.10
  6. Step 6: Final answer
    x = 13,940.64

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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.