Home / 13,487.53-18,612.80-7,519.07

Finding the Fourth Proportional to 13,487.53, 18,612.80 and 7,519.07

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Solution

The fourth proportional to 13,487.53, 18,612.80 and 7,519.07 is: 10,376.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,487.53 : 18,612.80 = 7,519.07 : x
  2. Step 2: Convert to fraction form
    13,487.53/18,612.80 = 7,519.07/x
  3. Step 3: Cross multiply
    13,487.53x = 18,612.80 × 7,519.07
  4. Step 4: Simplify right side
    13,487.53x = 139,950,946.10
  5. Step 5: Solve for x
    x = 139,950,946.10/13,487.53
  6. Step 6: Final answer
    x = 10,376.32

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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.