Home / 8,315.09-12,472.63-5,547.17

Finding the Fourth Proportional to 8,315.09, 12,472.63 and 5,547.17

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Solution

The fourth proportional to 8,315.09, 12,472.63 and 5,547.17 is: 8,320.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.09 : 12,472.63 = 5,547.17 : x
  2. Step 2: Convert to fraction form
    8,315.09/12,472.63 = 5,547.17/x
  3. Step 3: Cross multiply
    8,315.09x = 12,472.63 × 5,547.17
  4. Step 4: Simplify right side
    8,315.09x = 69,187,798.96
  5. Step 5: Solve for x
    x = 69,187,798.96/8,315.09
  6. Step 6: Final answer
    x = 8,320.75

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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.