Home / 13,038.40-17,993.76-7,373.66

Finding the Fourth Proportional to 13,038.40, 17,993.76 and 7,373.66

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Solution

The fourth proportional to 13,038.40, 17,993.76 and 7,373.66 is: 10,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,038.40 : 17,993.76 = 7,373.66 : x
  2. Step 2: Convert to fraction form
    13,038.40/17,993.76 = 7,373.66/x
  3. Step 3: Cross multiply
    13,038.40x = 17,993.76 × 7,373.66
  4. Step 4: Simplify right side
    13,038.40x = 132,679,842.83
  5. Step 5: Solve for x
    x = 132,679,842.83/13,038.40
  6. Step 6: Final answer
    x = 10,176.08

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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.