Home / 15,585.12-23,360.40-7,776.72

Finding the Fourth Proportional to 15,585.12, 23,360.40 and 7,776.72

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Solution

The fourth proportional to 15,585.12, 23,360.40 and 7,776.72 is: 11,656.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,585.12 : 23,360.40 = 7,776.72 : x
  2. Step 2: Convert to fraction form
    15,585.12/23,360.40 = 7,776.72/x
  3. Step 3: Cross multiply
    15,585.12x = 23,360.40 × 7,776.72
  4. Step 4: Simplify right side
    15,585.12x = 181,667,289.89
  5. Step 5: Solve for x
    x = 181,667,289.89/15,585.12
  6. Step 6: Final answer
    x = 11,656.46

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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.