Home / 13,270.44-18,312.75-7,301.55

Finding the Fourth Proportional to 13,270.44, 18,312.75 and 7,301.55

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Solution

The fourth proportional to 13,270.44, 18,312.75 and 7,301.55 is: 10,075.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.44 : 18,312.75 = 7,301.55 : x
  2. Step 2: Convert to fraction form
    13,270.44/18,312.75 = 7,301.55/x
  3. Step 3: Cross multiply
    13,270.44x = 18,312.75 × 7,301.55
  4. Step 4: Simplify right side
    13,270.44x = 133,711,459.76
  5. Step 5: Solve for x
    x = 133,711,459.76/13,270.44
  6. Step 6: Final answer
    x = 10,075.89

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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.