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Finding the Fourth Proportional to 15,618.50, 23,430.99 and 6,384.50

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Solution

The fourth proportional to 15,618.50, 23,430.99 and 6,384.50 is: 9,578.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.50 : 23,430.99 = 6,384.50 : x
  2. Step 2: Convert to fraction form
    15,618.50/23,430.99 = 6,384.50/x
  3. Step 3: Cross multiply
    15,618.50x = 23,430.99 × 6,384.50
  4. Step 4: Simplify right side
    15,618.50x = 149,595,155.66
  5. Step 5: Solve for x
    x = 149,595,155.66/15,618.50
  6. Step 6: Final answer
    x = 9,578.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.