Home / 7,875.59-11,809.02-3,126.94

Finding the Fourth Proportional to 7,875.59, 11,809.02 and 3,126.94

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Solution

The fourth proportional to 7,875.59, 11,809.02 and 3,126.94 is: 4,688.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.59 : 11,809.02 = 3,126.94 : x
  2. Step 2: Convert to fraction form
    7,875.59/11,809.02 = 3,126.94/x
  3. Step 3: Cross multiply
    7,875.59x = 11,809.02 × 3,126.94
  4. Step 4: Simplify right side
    7,875.59x = 36,926,047.70
  5. Step 5: Solve for x
    x = 36,926,047.70/7,875.59
  6. Step 6: Final answer
    x = 4,688.67

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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.