Home / 13,300.42-18,355.87-9,937.40

Finding the Fourth Proportional to 13,300.42, 18,355.87 and 9,937.40

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Solution

The fourth proportional to 13,300.42, 18,355.87 and 9,937.40 is: 13,714.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.42 : 18,355.87 = 9,937.40 : x
  2. Step 2: Convert to fraction form
    13,300.42/18,355.87 = 9,937.40/x
  3. Step 3: Cross multiply
    13,300.42x = 18,355.87 × 9,937.40
  4. Step 4: Simplify right side
    13,300.42x = 182,409,530.76
  5. Step 5: Solve for x
    x = 182,409,530.76/13,300.42
  6. Step 6: Final answer
    x = 13,714.57

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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.