Home / 9,117.54-12,567.06-7,225.79

Finding the Fourth Proportional to 9,117.54, 12,567.06 and 7,225.79

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Solution

The fourth proportional to 9,117.54, 12,567.06 and 7,225.79 is: 9,959.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.54 : 12,567.06 = 7,225.79 : x
  2. Step 2: Convert to fraction form
    9,117.54/12,567.06 = 7,225.79/x
  3. Step 3: Cross multiply
    9,117.54x = 12,567.06 × 7,225.79
  4. Step 4: Simplify right side
    9,117.54x = 90,806,873.64
  5. Step 5: Solve for x
    x = 90,806,873.64/9,117.54
  6. Step 6: Final answer
    x = 9,959.58

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Half scale
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Double scale
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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.