Home / 13,172.93-18,178.66-7,430.46

Finding the Fourth Proportional to 13,172.93, 18,178.66 and 7,430.46

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Solution

The fourth proportional to 13,172.93, 18,178.66 and 7,430.46 is: 10,254.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.93 : 18,178.66 = 7,430.46 : x
  2. Step 2: Convert to fraction form
    13,172.93/18,178.66 = 7,430.46/x
  3. Step 3: Cross multiply
    13,172.93x = 18,178.66 × 7,430.46
  4. Step 4: Simplify right side
    13,172.93x = 135,075,787.41
  5. Step 5: Solve for x
    x = 135,075,787.41/13,172.93
  6. Step 6: Final answer
    x = 10,254.04

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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.