Home / 13,330.17-19,995.15-5,430.83

Finding the Fourth Proportional to 13,330.17, 19,995.15 and 5,430.83

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Solution

The fourth proportional to 13,330.17, 19,995.15 and 5,430.83 is: 8,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.17 : 19,995.15 = 5,430.83 : x
  2. Step 2: Convert to fraction form
    13,330.17/19,995.15 = 5,430.83/x
  3. Step 3: Cross multiply
    13,330.17x = 19,995.15 × 5,430.83
  4. Step 4: Simplify right side
    13,330.17x = 108,590,260.47
  5. Step 5: Solve for x
    x = 108,590,260.47/13,330.17
  6. Step 6: Final answer
    x = 8,146.20

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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.