Home / 13,555.04-18,705.94-7,587.86

Finding the Fourth Proportional to 13,555.04, 18,705.94 and 7,587.86

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Solution

The fourth proportional to 13,555.04, 18,705.94 and 7,587.86 is: 10,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.04 : 18,705.94 = 7,587.86 : x
  2. Step 2: Convert to fraction form
    13,555.04/18,705.94 = 7,587.86/x
  3. Step 3: Cross multiply
    13,555.04x = 18,705.94 × 7,587.86
  4. Step 4: Simplify right side
    13,555.04x = 141,937,922.42
  5. Step 5: Solve for x
    x = 141,937,922.42/13,555.04
  6. Step 6: Final answer
    x = 10,471.23

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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.