Home / 13,557.08-18,707.86-7,506.89

Finding the Fourth Proportional to 13,557.08, 18,707.86 and 7,506.89

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Solution

The fourth proportional to 13,557.08, 18,707.86 and 7,506.89 is: 10,359.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.08 : 18,707.86 = 7,506.89 : x
  2. Step 2: Convert to fraction form
    13,557.08/18,707.86 = 7,506.89/x
  3. Step 3: Cross multiply
    13,557.08x = 18,707.86 × 7,506.89
  4. Step 4: Simplify right side
    13,557.08x = 140,437,833.15
  5. Step 5: Solve for x
    x = 140,437,833.15/13,557.08
  6. Step 6: Final answer
    x = 10,359.00

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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.