Home / 9,412.64-12,988.59-5,163.52

Finding the Fourth Proportional to 9,412.64, 12,988.59 and 5,163.52

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Solution

The fourth proportional to 9,412.64, 12,988.59 and 5,163.52 is: 7,125.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.64 : 12,988.59 = 5,163.52 : x
  2. Step 2: Convert to fraction form
    9,412.64/12,988.59 = 5,163.52/x
  3. Step 3: Cross multiply
    9,412.64x = 12,988.59 × 5,163.52
  4. Step 4: Simplify right side
    9,412.64x = 67,066,779.29
  5. Step 5: Solve for x
    x = 67,066,779.29/9,412.64
  6. Step 6: Final answer
    x = 7,125.18

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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.