Home / 13,385.04-18,470.52-7,416.36

Finding the Fourth Proportional to 13,385.04, 18,470.52 and 7,416.36

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Solution

The fourth proportional to 13,385.04, 18,470.52 and 7,416.36 is: 10,234.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.04 : 18,470.52 = 7,416.36 : x
  2. Step 2: Convert to fraction form
    13,385.04/18,470.52 = 7,416.36/x
  3. Step 3: Cross multiply
    13,385.04x = 18,470.52 × 7,416.36
  4. Step 4: Simplify right side
    13,385.04x = 136,984,025.71
  5. Step 5: Solve for x
    x = 136,984,025.71/13,385.04
  6. Step 6: Final answer
    x = 10,234.11

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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.