Home / 10,384.45-14,330.55-7,405.48

Finding the Fourth Proportional to 10,384.45, 14,330.55 and 7,405.48

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Solution

The fourth proportional to 10,384.45, 14,330.55 and 7,405.48 is: 10,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,384.45 : 14,330.55 = 7,405.48 : x
  2. Step 2: Convert to fraction form
    10,384.45/14,330.55 = 7,405.48/x
  3. Step 3: Cross multiply
    10,384.45x = 14,330.55 × 7,405.48
  4. Step 4: Simplify right side
    10,384.45x = 106,124,601.41
  5. Step 5: Solve for x
    x = 106,124,601.41/10,384.45
  6. Step 6: Final answer
    x = 10,219.57

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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.