Home / 9,125.16-12,590.34-5,397.48

Finding the Fourth Proportional to 9,125.16, 12,590.34 and 5,397.48

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Solution

The fourth proportional to 9,125.16, 12,590.34 and 5,397.48 is: 7,447.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.16 : 12,590.34 = 5,397.48 : x
  2. Step 2: Convert to fraction form
    9,125.16/12,590.34 = 5,397.48/x
  3. Step 3: Cross multiply
    9,125.16x = 12,590.34 × 5,397.48
  4. Step 4: Simplify right side
    9,125.16x = 67,956,108.34
  5. Step 5: Solve for x
    x = 67,956,108.34/9,125.16
  6. Step 6: Final answer
    x = 7,447.11

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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.