Home / 13,315.02-19,957.36-8,319.70

Finding the Fourth Proportional to 13,315.02, 19,957.36 and 8,319.70

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Solution

The fourth proportional to 13,315.02, 19,957.36 and 8,319.70 is: 12,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.02 : 19,957.36 = 8,319.70 : x
  2. Step 2: Convert to fraction form
    13,315.02/19,957.36 = 8,319.70/x
  3. Step 3: Cross multiply
    13,315.02x = 19,957.36 × 8,319.70
  4. Step 4: Simplify right side
    13,315.02x = 166,039,236.54
  5. Step 5: Solve for x
    x = 166,039,236.54/13,315.02
  6. Step 6: Final answer
    x = 12,470.07

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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.