Home / 13,430.79-18,532.40-7,462.44

Finding the Fourth Proportional to 13,430.79, 18,532.40 and 7,462.44

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Solution

The fourth proportional to 13,430.79, 18,532.40 and 7,462.44 is: 10,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.79 : 18,532.40 = 7,462.44 : x
  2. Step 2: Convert to fraction form
    13,430.79/18,532.40 = 7,462.44/x
  3. Step 3: Cross multiply
    13,430.79x = 18,532.40 × 7,462.44
  4. Step 4: Simplify right side
    13,430.79x = 138,296,885.74
  5. Step 5: Solve for x
    x = 138,296,885.74/13,430.79
  6. Step 6: Final answer
    x = 10,297.00

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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.