Home / 7,931.91-10,947-4,574.76

Finding the Fourth Proportional to 7,931.91, 10,947 and 4,574.76

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Solution

The fourth proportional to 7,931.91, 10,947 and 4,574.76 is: 6,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.91 : 10,947 = 4,574.76 : x
  2. Step 2: Convert to fraction form
    7,931.91/10,947 = 4,574.76/x
  3. Step 3: Cross multiply
    7,931.91x = 10,947 × 4,574.76
  4. Step 4: Simplify right side
    7,931.91x = 50,079,897.72
  5. Step 5: Solve for x
    x = 50,079,897.72/7,931.91
  6. Step 6: Final answer
    x = 6,313.72

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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.