Home / 14,019.30-19,346.40-7,731.72

Finding the Fourth Proportional to 14,019.30, 19,346.40 and 7,731.72

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Solution

The fourth proportional to 14,019.30, 19,346.40 and 7,731.72 is: 10,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.30 : 19,346.40 = 7,731.72 : x
  2. Step 2: Convert to fraction form
    14,019.30/19,346.40 = 7,731.72/x
  3. Step 3: Cross multiply
    14,019.30x = 19,346.40 × 7,731.72
  4. Step 4: Simplify right side
    14,019.30x = 149,580,947.81
  5. Step 5: Solve for x
    x = 149,580,947.81/14,019.30
  6. Step 6: Final answer
    x = 10,669.64

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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.