Home / 14,210.16-19,610.28-7,921.86

Finding the Fourth Proportional to 14,210.16, 19,610.28 and 7,921.86

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Solution

The fourth proportional to 14,210.16, 19,610.28 and 7,921.86 is: 10,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.16 : 19,610.28 = 7,921.86 : x
  2. Step 2: Convert to fraction form
    14,210.16/19,610.28 = 7,921.86/x
  3. Step 3: Cross multiply
    14,210.16x = 19,610.28 × 7,921.86
  4. Step 4: Simplify right side
    14,210.16x = 155,349,892.72
  5. Step 5: Solve for x
    x = 155,349,892.72/14,210.16
  6. Step 6: Final answer
    x = 10,932.31

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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.