Home / 15,078.04-22,631.07-7,688.05

Finding the Fourth Proportional to 15,078.04, 22,631.07 and 7,688.05

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Solution

The fourth proportional to 15,078.04, 22,631.07 and 7,688.05 is: 11,539.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,078.04 : 22,631.07 = 7,688.05 : x
  2. Step 2: Convert to fraction form
    15,078.04/22,631.07 = 7,688.05/x
  3. Step 3: Cross multiply
    15,078.04x = 22,631.07 × 7,688.05
  4. Step 4: Simplify right side
    15,078.04x = 173,988,797.71
  5. Step 5: Solve for x
    x = 173,988,797.71/15,078.04
  6. Step 6: Final answer
    x = 11,539.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.