Home / 13,478.49-18,600.07-7,510.03

Finding the Fourth Proportional to 13,478.49, 18,600.07 and 7,510.03

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Solution

The fourth proportional to 13,478.49, 18,600.07 and 7,510.03 is: 10,363.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.49 : 18,600.07 = 7,510.03 : x
  2. Step 2: Convert to fraction form
    13,478.49/18,600.07 = 7,510.03/x
  3. Step 3: Cross multiply
    13,478.49x = 18,600.07 × 7,510.03
  4. Step 4: Simplify right side
    13,478.49x = 139,687,046.15
  5. Step 5: Solve for x
    x = 139,687,046.15/13,478.49
  6. Step 6: Final answer
    x = 10,363.70

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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.