Home / 15,088.08-20,820.58-8,373.71

Finding the Fourth Proportional to 15,088.08, 20,820.58 and 8,373.71

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Solution

The fourth proportional to 15,088.08, 20,820.58 and 8,373.71 is: 11,555.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,088.08 : 20,820.58 = 8,373.71 : x
  2. Step 2: Convert to fraction form
    15,088.08/20,820.58 = 8,373.71/x
  3. Step 3: Cross multiply
    15,088.08x = 20,820.58 × 8,373.71
  4. Step 4: Simplify right side
    15,088.08x = 174,345,565.40
  5. Step 5: Solve for x
    x = 174,345,565.40/15,088.08
  6. Step 6: Final answer
    x = 11,555.18

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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.