Home / 9,120.76-12,586.66-4,929.01

Finding the Fourth Proportional to 9,120.76, 12,586.66 and 4,929.01

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Solution

The fourth proportional to 9,120.76, 12,586.66 and 4,929.01 is: 6,802.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.76 : 12,586.66 = 4,929.01 : x
  2. Step 2: Convert to fraction form
    9,120.76/12,586.66 = 4,929.01/x
  3. Step 3: Cross multiply
    9,120.76x = 12,586.66 × 4,929.01
  4. Step 4: Simplify right side
    9,120.76x = 62,039,729.22
  5. Step 5: Solve for x
    x = 62,039,729.22/9,120.76
  6. Step 6: Final answer
    x = 6,802.04

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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.