Home / 10,547.21-15,783.76-8,332.88

Finding the Fourth Proportional to 10,547.21, 15,783.76 and 8,332.88

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Solution

The fourth proportional to 10,547.21, 15,783.76 and 8,332.88 is: 12,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,547.21 : 15,783.76 = 8,332.88 : x
  2. Step 2: Convert to fraction form
    10,547.21/15,783.76 = 8,332.88/x
  3. Step 3: Cross multiply
    10,547.21x = 15,783.76 × 8,332.88
  4. Step 4: Simplify right side
    10,547.21x = 131,524,109.53
  5. Step 5: Solve for x
    x = 131,524,109.53/10,547.21
  6. Step 6: Final answer
    x = 12,470.04

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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.