Home / 13,624.90-18,801.20-7,656.10

Finding the Fourth Proportional to 13,624.90, 18,801.20 and 7,656.10

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Solution

The fourth proportional to 13,624.90, 18,801.20 and 7,656.10 is: 10,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.90 : 18,801.20 = 7,656.10 : x
  2. Step 2: Convert to fraction form
    13,624.90/18,801.20 = 7,656.10/x
  3. Step 3: Cross multiply
    13,624.90x = 18,801.20 × 7,656.10
  4. Step 4: Simplify right side
    13,624.90x = 143,943,867.32
  5. Step 5: Solve for x
    x = 143,943,867.32/13,624.90
  6. Step 6: Final answer
    x = 10,564.77

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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.