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Finding the Fourth Proportional to 15,130.00, 20,873.67 and 9,384.80

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Solution

The fourth proportional to 15,130.00, 20,873.67 and 9,384.80 is: 12,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130.00 : 20,873.67 = 9,384.80 : x
  2. Step 2: Convert to fraction form
    15,130.00/20,873.67 = 9,384.80/x
  3. Step 3: Cross multiply
    15,130.00x = 20,873.67 × 9,384.80
  4. Step 4: Simplify right side
    15,130.00x = 195,895,218.22
  5. Step 5: Solve for x
    x = 195,895,218.22/15,130.00
  6. Step 6: Final answer
    x = 12,947.47

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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.