Home / 13,300.10-18,354.95-7,331.75

Finding the Fourth Proportional to 13,300.10, 18,354.95 and 7,331.75

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Solution

The fourth proportional to 13,300.10, 18,354.95 and 7,331.75 is: 10,118.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.10 : 18,354.95 = 7,331.75 : x
  2. Step 2: Convert to fraction form
    13,300.10/18,354.95 = 7,331.75/x
  3. Step 3: Cross multiply
    13,300.10x = 18,354.95 × 7,331.75
  4. Step 4: Simplify right side
    13,300.10x = 134,573,776.23
  5. Step 5: Solve for x
    x = 134,573,776.23/13,300.10
  6. Step 6: Final answer
    x = 10,118.26

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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.