Home / 9,209.40-12,711.72-6,564.48

Finding the Fourth Proportional to 9,209.40, 12,711.72 and 6,564.48

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Solution

The fourth proportional to 9,209.40, 12,711.72 and 6,564.48 is: 9,060.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.40 : 12,711.72 = 6,564.48 : x
  2. Step 2: Convert to fraction form
    9,209.40/12,711.72 = 6,564.48/x
  3. Step 3: Cross multiply
    9,209.40x = 12,711.72 × 6,564.48
  4. Step 4: Simplify right side
    9,209.40x = 83,445,831.71
  5. Step 5: Solve for x
    x = 83,445,831.71/9,209.40
  6. Step 6: Final answer
    x = 9,060.94

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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.