Home / 13,333.40-19,987.30-10,370.20

Finding the Fourth Proportional to 13,333.40, 19,987.30 and 10,370.20

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Solution

The fourth proportional to 13,333.40, 19,987.30 and 10,370.20 is: 15,545.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.40 : 19,987.30 = 10,370.20 : x
  2. Step 2: Convert to fraction form
    13,333.40/19,987.30 = 10,370.20/x
  3. Step 3: Cross multiply
    13,333.40x = 19,987.30 × 10,370.20
  4. Step 4: Simplify right side
    13,333.40x = 207,272,298.46
  5. Step 5: Solve for x
    x = 207,272,298.46/13,333.40
  6. Step 6: Final answer
    x = 15,545.34

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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.