Home / 13,407.04-18,503.93-7,440.62

Finding the Fourth Proportional to 13,407.04, 18,503.93 and 7,440.62

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Solution

The fourth proportional to 13,407.04, 18,503.93 and 7,440.62 is: 10,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.04 : 18,503.93 = 7,440.62 : x
  2. Step 2: Convert to fraction form
    13,407.04/18,503.93 = 7,440.62/x
  3. Step 3: Cross multiply
    13,407.04x = 18,503.93 × 7,440.62
  4. Step 4: Simplify right side
    13,407.04x = 137,680,776.50
  5. Step 5: Solve for x
    x = 137,680,776.50/13,407.04
  6. Step 6: Final answer
    x = 10,269.29

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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.