Home / 13,434.32-18,547.47-8,900.85

Finding the Fourth Proportional to 13,434.32, 18,547.47 and 8,900.85

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Solution

The fourth proportional to 13,434.32, 18,547.47 and 8,900.85 is: 12,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.32 : 18,547.47 = 8,900.85 : x
  2. Step 2: Convert to fraction form
    13,434.32/18,547.47 = 8,900.85/x
  3. Step 3: Cross multiply
    13,434.32x = 18,547.47 × 8,900.85
  4. Step 4: Simplify right side
    13,434.32x = 165,088,186.44
  5. Step 5: Solve for x
    x = 165,088,186.44/13,434.32
  6. Step 6: Final answer
    x = 12,288.54

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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.