Home / 13,790.56-19,030.40-7,502.92

Finding the Fourth Proportional to 13,790.56, 19,030.40 and 7,502.92

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Solution

The fourth proportional to 13,790.56, 19,030.40 and 7,502.92 is: 10,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.56 : 19,030.40 = 7,502.92 : x
  2. Step 2: Convert to fraction form
    13,790.56/19,030.40 = 7,502.92/x
  3. Step 3: Cross multiply
    13,790.56x = 19,030.40 × 7,502.92
  4. Step 4: Simplify right side
    13,790.56x = 142,783,568.77
  5. Step 5: Solve for x
    x = 142,783,568.77/13,790.56
  6. Step 6: Final answer
    x = 10,353.72

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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.