Home / 15,426.08-21,288.09-8,352.50

Finding the Fourth Proportional to 15,426.08, 21,288.09 and 8,352.50

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Solution

The fourth proportional to 15,426.08, 21,288.09 and 8,352.50 is: 11,526.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,426.08 : 21,288.09 = 8,352.50 : x
  2. Step 2: Convert to fraction form
    15,426.08/21,288.09 = 8,352.50/x
  3. Step 3: Cross multiply
    15,426.08x = 21,288.09 × 8,352.50
  4. Step 4: Simplify right side
    15,426.08x = 177,808,792.86
  5. Step 5: Solve for x
    x = 177,808,792.86/15,426.08
  6. Step 6: Final answer
    x = 11,526.51

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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.