Home / 14,602.77-20,139.41-12,345.12

Finding the Fourth Proportional to 14,602.77, 20,139.41 and 12,345.12

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Solution

The fourth proportional to 14,602.77, 20,139.41 and 12,345.12 is: 17,025.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,602.77 : 20,139.41 = 12,345.12 : x
  2. Step 2: Convert to fraction form
    14,602.77/20,139.41 = 12,345.12/x
  3. Step 3: Cross multiply
    14,602.77x = 20,139.41 × 12,345.12
  4. Step 4: Simplify right side
    14,602.77x = 248,623,371.45
  5. Step 5: Solve for x
    x = 248,623,371.45/14,602.77
  6. Step 6: Final answer
    x = 17,025.77

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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.