Home / 14,610.40-20,155.12-9,158.48

Finding the Fourth Proportional to 14,610.40, 20,155.12 and 9,158.48

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Solution

The fourth proportional to 14,610.40, 20,155.12 and 9,158.48 is: 12,634.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,610.40 : 20,155.12 = 9,158.48 : x
  2. Step 2: Convert to fraction form
    14,610.40/20,155.12 = 9,158.48/x
  3. Step 3: Cross multiply
    14,610.40x = 20,155.12 × 9,158.48
  4. Step 4: Simplify right side
    14,610.40x = 184,590,263.42
  5. Step 5: Solve for x
    x = 184,590,263.42/14,610.40
  6. Step 6: Final answer
    x = 12,634.17

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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.