Home / 13,337.40-19,962.90-10,399.80

Finding the Fourth Proportional to 13,337.40, 19,962.90 and 10,399.80

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Solution

The fourth proportional to 13,337.40, 19,962.90 and 10,399.80 is: 15,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.40 : 19,962.90 = 10,399.80 : x
  2. Step 2: Convert to fraction form
    13,337.40/19,962.90 = 10,399.80/x
  3. Step 3: Cross multiply
    13,337.40x = 19,962.90 × 10,399.80
  4. Step 4: Simplify right side
    13,337.40x = 207,610,167.42
  5. Step 5: Solve for x
    x = 207,610,167.42/13,337.40
  6. Step 6: Final answer
    x = 15,566.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.