Home / 11,929.04-16,459.68-7,213.60

Finding the Fourth Proportional to 11,929.04, 16,459.68 and 7,213.60

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Solution

The fourth proportional to 11,929.04, 16,459.68 and 7,213.60 is: 9,953.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.04 : 16,459.68 = 7,213.60 : x
  2. Step 2: Convert to fraction form
    11,929.04/16,459.68 = 7,213.60/x
  3. Step 3: Cross multiply
    11,929.04x = 16,459.68 × 7,213.60
  4. Step 4: Simplify right side
    11,929.04x = 118,733,547.65
  5. Step 5: Solve for x
    x = 118,733,547.65/11,929.04
  6. Step 6: Final answer
    x = 9,953.32

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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.