Home / 13,225.08-18,248.58-7,635

Finding the Fourth Proportional to 13,225.08, 18,248.58 and 7,635

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Solution

The fourth proportional to 13,225.08, 18,248.58 and 7,635 is: 10,535.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.08 : 18,248.58 = 7,635 : x
  2. Step 2: Convert to fraction form
    13,225.08/18,248.58 = 7,635/x
  3. Step 3: Cross multiply
    13,225.08x = 18,248.58 × 7,635
  4. Step 4: Simplify right side
    13,225.08x = 139,327,908.30
  5. Step 5: Solve for x
    x = 139,327,908.30/13,225.08
  6. Step 6: Final answer
    x = 10,535.13

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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.