Home / 7,914.35-10,921.91-4,557.76

Finding the Fourth Proportional to 7,914.35, 10,921.91 and 4,557.76

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Solution

The fourth proportional to 7,914.35, 10,921.91 and 4,557.76 is: 6,289.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.35 : 10,921.91 = 4,557.76 : x
  2. Step 2: Convert to fraction form
    7,914.35/10,921.91 = 4,557.76/x
  3. Step 3: Cross multiply
    7,914.35x = 10,921.91 × 4,557.76
  4. Step 4: Simplify right side
    7,914.35x = 49,779,428.61
  5. Step 5: Solve for x
    x = 49,779,428.61/7,914.35
  6. Step 6: Final answer
    x = 6,289.77

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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.