Home / 13,478.28-18,599.87-7,510.61

Finding the Fourth Proportional to 13,478.28, 18,599.87 and 7,510.61

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Solution

The fourth proportional to 13,478.28, 18,599.87 and 7,510.61 is: 10,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.28 : 18,599.87 = 7,510.61 : x
  2. Step 2: Convert to fraction form
    13,478.28/18,599.87 = 7,510.61/x
  3. Step 3: Cross multiply
    13,478.28x = 18,599.87 × 7,510.61
  4. Step 4: Simplify right side
    13,478.28x = 139,696,239.07
  5. Step 5: Solve for x
    x = 139,696,239.07/13,478.28
  6. Step 6: Final answer
    x = 10,364.54

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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.