Home / 10,378.64-15,567.80-2,587.52

Finding the Fourth Proportional to 10,378.64, 15,567.80 and 2,587.52

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Solution

The fourth proportional to 10,378.64, 15,567.80 and 2,587.52 is: 3,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.64 : 15,567.80 = 2,587.52 : x
  2. Step 2: Convert to fraction form
    10,378.64/15,567.80 = 2,587.52/x
  3. Step 3: Cross multiply
    10,378.64x = 15,567.80 × 2,587.52
  4. Step 4: Simplify right side
    10,378.64x = 40,281,993.86
  5. Step 5: Solve for x
    x = 40,281,993.86/10,378.64
  6. Step 6: Final answer
    x = 3,881.24

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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.