Home / 13,412.67-18,510.30-7,748.48

Finding the Fourth Proportional to 13,412.67, 18,510.30 and 7,748.48

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Solution

The fourth proportional to 13,412.67, 18,510.30 and 7,748.48 is: 10,693.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.67 : 18,510.30 = 7,748.48 : x
  2. Step 2: Convert to fraction form
    13,412.67/18,510.30 = 7,748.48/x
  3. Step 3: Cross multiply
    13,412.67x = 18,510.30 × 7,748.48
  4. Step 4: Simplify right side
    13,412.67x = 143,426,596.79
  5. Step 5: Solve for x
    x = 143,426,596.79/13,412.67
  6. Step 6: Final answer
    x = 10,693.37

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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.