Home / 14,390.64-19,867.68-10,407.60

Finding the Fourth Proportional to 14,390.64, 19,867.68 and 10,407.60

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Solution

The fourth proportional to 14,390.64, 19,867.68 and 10,407.60 is: 14,368.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.64 : 19,867.68 = 10,407.60 : x
  2. Step 2: Convert to fraction form
    14,390.64/19,867.68 = 10,407.60/x
  3. Step 3: Cross multiply
    14,390.64x = 19,867.68 × 10,407.60
  4. Step 4: Simplify right side
    14,390.64x = 206,774,866.37
  5. Step 5: Solve for x
    x = 206,774,866.37/14,390.64
  6. Step 6: Final answer
    x = 14,368.71

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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.