Home / 7,123.95-10,685.93-4,200.19

Finding the Fourth Proportional to 7,123.95, 10,685.93 and 4,200.19

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Solution

The fourth proportional to 7,123.95, 10,685.93 and 4,200.19 is: 6,300.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.95 : 10,685.93 = 4,200.19 : x
  2. Step 2: Convert to fraction form
    7,123.95/10,685.93 = 4,200.19/x
  3. Step 3: Cross multiply
    7,123.95x = 10,685.93 × 4,200.19
  4. Step 4: Simplify right side
    7,123.95x = 44,882,888.61
  5. Step 5: Solve for x
    x = 44,882,888.61/7,123.95
  6. Step 6: Final answer
    x = 6,300.28

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.