Home / 13,623.24-20,430.90-4,853.40

Finding the Fourth Proportional to 13,623.24, 20,430.90 and 4,853.40

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Solution

The fourth proportional to 13,623.24, 20,430.90 and 4,853.40 is: 7,278.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.24 : 20,430.90 = 4,853.40 : x
  2. Step 2: Convert to fraction form
    13,623.24/20,430.90 = 4,853.40/x
  3. Step 3: Cross multiply
    13,623.24x = 20,430.90 × 4,853.40
  4. Step 4: Simplify right side
    13,623.24x = 99,159,330.06
  5. Step 5: Solve for x
    x = 99,159,330.06/13,623.24
  6. Step 6: Final answer
    x = 7,278.69

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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.