Home / 13,478.39-18,600.75-7,510.06

Finding the Fourth Proportional to 13,478.39, 18,600.75 and 7,510.06

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Solution

The fourth proportional to 13,478.39, 18,600.75 and 7,510.06 is: 10,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.39 : 18,600.75 = 7,510.06 : x
  2. Step 2: Convert to fraction form
    13,478.39/18,600.75 = 7,510.06/x
  3. Step 3: Cross multiply
    13,478.39x = 18,600.75 × 7,510.06
  4. Step 4: Simplify right side
    13,478.39x = 139,692,795.05
  5. Step 5: Solve for x
    x = 139,692,795.05/13,478.39
  6. Step 6: Final answer
    x = 10,364.20

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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.