Home / 13,790.32-19,030.54-7,502.70

Finding the Fourth Proportional to 13,790.32, 19,030.54 and 7,502.70

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Solution

The fourth proportional to 13,790.32, 19,030.54 and 7,502.70 is: 10,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,790.32 : 19,030.54 = 7,502.70 : x
  2. Step 2: Convert to fraction form
    13,790.32/19,030.54 = 7,502.70/x
  3. Step 3: Cross multiply
    13,790.32x = 19,030.54 × 7,502.70
  4. Step 4: Simplify right side
    13,790.32x = 142,780,432.46
  5. Step 5: Solve for x
    x = 142,780,432.46/13,790.32
  6. Step 6: Final answer
    x = 10,353.67

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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.