Home / 13,069.18-18,031.49-7,403.02

Finding the Fourth Proportional to 13,069.18, 18,031.49 and 7,403.02

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Solution

The fourth proportional to 13,069.18, 18,031.49 and 7,403.02 is: 10,213.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069.18 : 18,031.49 = 7,403.02 : x
  2. Step 2: Convert to fraction form
    13,069.18/18,031.49 = 7,403.02/x
  3. Step 3: Cross multiply
    13,069.18x = 18,031.49 × 7,403.02
  4. Step 4: Simplify right side
    13,069.18x = 133,487,444.08
  5. Step 5: Solve for x
    x = 133,487,444.08/13,069.18
  6. Step 6: Final answer
    x = 10,213.92

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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.