Home / 9,371.04-12,931.81-5,121.91

Finding the Fourth Proportional to 9,371.04, 12,931.81 and 5,121.91

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Solution

The fourth proportional to 9,371.04, 12,931.81 and 5,121.91 is: 7,068.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,371.04 : 12,931.81 = 5,121.91 : x
  2. Step 2: Convert to fraction form
    9,371.04/12,931.81 = 5,121.91/x
  3. Step 3: Cross multiply
    9,371.04x = 12,931.81 × 5,121.91
  4. Step 4: Simplify right side
    9,371.04x = 66,235,566.96
  5. Step 5: Solve for x
    x = 66,235,566.96/9,371.04
  6. Step 6: Final answer
    x = 7,068.11

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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.