Home / 10,500.90-15,750.14-4,263.70

Finding the Fourth Proportional to 10,500.90, 15,750.14 and 4,263.70

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Solution

The fourth proportional to 10,500.90, 15,750.14 and 4,263.70 is: 6,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,500.90 : 15,750.14 = 4,263.70 : x
  2. Step 2: Convert to fraction form
    10,500.90/15,750.14 = 4,263.70/x
  3. Step 3: Cross multiply
    10,500.90x = 15,750.14 × 4,263.70
  4. Step 4: Simplify right side
    10,500.90x = 67,153,871.92
  5. Step 5: Solve for x
    x = 67,153,871.92/10,500.90
  6. Step 6: Final answer
    x = 6,395.06

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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.