Home / 13,697.07-18,901.98-7,409.45

Finding the Fourth Proportional to 13,697.07, 18,901.98 and 7,409.45

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Solution

The fourth proportional to 13,697.07, 18,901.98 and 7,409.45 is: 10,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.07 : 18,901.98 = 7,409.45 : x
  2. Step 2: Convert to fraction form
    13,697.07/18,901.98 = 7,409.45/x
  3. Step 3: Cross multiply
    13,697.07x = 18,901.98 × 7,409.45
  4. Step 4: Simplify right side
    13,697.07x = 140,053,181.20
  5. Step 5: Solve for x
    x = 140,053,181.20/13,697.07
  6. Step 6: Final answer
    x = 10,225.05

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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.