Home / 9,410.13-12,985.74-5,431.91

Finding the Fourth Proportional to 9,410.13, 12,985.74 and 5,431.91

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Solution

The fourth proportional to 9,410.13, 12,985.74 and 5,431.91 is: 7,495.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,410.13 : 12,985.74 = 5,431.91 : x
  2. Step 2: Convert to fraction form
    9,410.13/12,985.74 = 5,431.91/x
  3. Step 3: Cross multiply
    9,410.13x = 12,985.74 × 5,431.91
  4. Step 4: Simplify right side
    9,410.13x = 70,537,306.03
  5. Step 5: Solve for x
    x = 70,537,306.03/9,410.13
  6. Step 6: Final answer
    x = 7,495.89

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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.